CN101189084A - Metal mold for molding and method of using the same - Google Patents
Metal mold for molding and method of using the same Download PDFInfo
- Publication number
- CN101189084A CN101189084A CNA2006800194161A CN200680019416A CN101189084A CN 101189084 A CN101189084 A CN 101189084A CN A2006800194161 A CNA2006800194161 A CN A2006800194161A CN 200680019416 A CN200680019416 A CN 200680019416A CN 101189084 A CN101189084 A CN 101189084A
- Authority
- CN
- China
- Prior art keywords
- collet chuck
- sleeve
- ring
- forming metal
- thermal expansion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 128
- 239000002184 metal Substances 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000000465 moulding Methods 0.000 title abstract 6
- 239000000463 material Substances 0.000 claims abstract description 39
- 230000002093 peripheral effect Effects 0.000 claims abstract description 32
- 229910045601 alloy Inorganic materials 0.000 claims description 105
- 239000000956 alloy Substances 0.000 claims description 105
- 238000007493 shaping process Methods 0.000 claims description 52
- 229910003460 diamond Inorganic materials 0.000 claims description 24
- 239000010432 diamond Substances 0.000 claims description 24
- 229910000997 High-speed steel Inorganic materials 0.000 claims description 23
- 238000012856 packing Methods 0.000 claims description 21
- 239000011195 cermet Substances 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 14
- 229910009043 WC-Co Inorganic materials 0.000 description 73
- 230000035882 stress Effects 0.000 description 70
- 230000006835 compression Effects 0.000 description 47
- 238000007906 compression Methods 0.000 description 47
- 238000005299 abrasion Methods 0.000 description 38
- 229910000601 superalloy Inorganic materials 0.000 description 30
- 208000037656 Respiratory Sounds Diseases 0.000 description 22
- 230000000694 effects Effects 0.000 description 18
- 229910052721 tungsten Inorganic materials 0.000 description 17
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 15
- 239000010937 tungsten Substances 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000008207 working material Substances 0.000 description 7
- 230000008646 thermal stress Effects 0.000 description 6
- 208000032820 Ring chromosome 13 syndrome Diseases 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000005242 forging Methods 0.000 description 4
- 238000000748 compression moulding Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- -1 pottery Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000006049 ring expansion reaction Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Landscapes
- Forging (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
A metal mold capable of providing a sufficient compressive stress to a molding member and enabling an increase in service life since a high tensile stress is not applied thereto even if a hard fragile material is used for the molding member and a method of using the metal mold. A pressurization member (2) is fitted onto the molding member (1) so as to surround the periphery of the molding member, a collet chuck (3) is fitted onto the pressurization member so as to surround the periphery of the pressurization member, and a casing (4) is fitted onto the collet chuck so as to surround the periphery of the collet chuck. Outer peripheral slits (2a) and inner peripheral slits (2b) are formed in the pressurization member (2) alternately at equal intervals along the circumferential direction. A male screw part (3a) is formed at the upper end part or the lower end part of the collet chuck (3), and a tapered surface (3b) reduced in diameter toward the male screw part (3a) side is formed on the outer periphery of the collet chuck. A tapered surface (4a) in surface contact with the tapered surface (3b) is formed on the inner periphery of the casing (4). Then, a nut (6) disposed on the upper or lower side of the casing (4) is tightened with the male screw part (3a) to reduce the diameter of the collet chuck (3) so as to act a compressive stress on the molding member (1).
Description
Technical field
The present invention relates to the forming metal mould and the using method thereof of punch, mould etc., this forming metal mould uses under pressure processing, warm forge hot processing, other high pressure, and use in the device that requires abrasion performance and strong fastening force etc.
Background technology
Metal material is configured as in the forming metal mould of reservation shape in pressurization with pressure processing, forging processing etc., by the high internal pressure that when it pressurizes, applies, produce the tensile stress of circumferencial direction on metal die, when its value had surpassed the strength of materials, metal die just destroyed.For destruction and the distortion that prevents such metal die, for example in patent documentation 1, disclose periphery setting-in reinforcing ring, metal die applied the method for compression stress at metal die.But, only depend on this structure to pay enough compression stresses to metal die effectively, can not obtain enough metal die intensity.
In addition, in patent documentation 2, disclose, made the method for metal system electrode, in embodiment, put down in writing the example that the such difficult plastic working material of tungsten is carried out plastic working with the method for pressurization by using the pressurization of protruding metal pattern and recessed metal pattern.
When in this wise difficult plastic working material being carried out plastic working, the shaping that on the metal die, particularly has a forming cavity with parts on, acting on very high pressure, abrasion easily are so these are shaped and use part requirement abrasion performances.For this reason, normally adopt the hard-brittle material of superhard alloy etc.
But hard-brittle material is compared with the ductility material of steel etc., in nature, particularly to resist the breakdown strength of tensile stress lower, can not bear high tonnage.For this reason, be shaped and have to use breakdown strengths such as high-speed steel, tool steel than higher soft ductility material, exist distortion, abrasion greatly, the problem that die life is short with parts.
Patent documentation 1: TOHKEMY 2001-138002 communique
Patent documentation 2: TOHKEMY 2003-59445 communique
Summary of the invention
The objective of the invention is, in order to overcome the shortcoming of above-mentioned metal mould for formation before, a kind of forming metal mould and using method thereof are provided, and forming metal mould of the present invention can apply enough compression stresses with parts to being shaped, adopt hard-brittle material even be shaped with parts, can not act on high tensile stress yet, hard-brittle material is destroyed, can utilize its high abrasion resistance, so, can realize the long lifetime of forming cavity.
The present invention adopts the cylindric shaping that inside is had a forming cavity with parts, apply the structure of compression stress in use, solves above-mentioned problem with this.
Promptly, the forming metal mould of the 1st form of the present invention, with be enclosed in cylindric shaping that inside has a forming cavity with the mode around the parts chimeric the pressure-producing part of ring-type, and with surround this pressure-producing part around mode chimeric the collet chuck of ring-type, further, with surround this collet chuck around mode chimeric the sleeve of ring-type, it is characterized in that, alternately be provided with periphery slit and interior all slits at pressure-producing part upper edge Zhou Fangxiang, the mode of described periphery slit below penetrating into above pressure-producing part is formed on the footpath direction, open in periphery; In described the mode of all slits below above pressure-producing part, penetrating into be formed on the footpath direction, at interior Zhou Kaifang; Collet chuck end or bottom thereon has outer screw section, and, have the conical surface in the periphery of collet chuck towards outer screw section side undergauge; Having in interior week and the identical conical surface of the conical surface of collet chuck periphery of sleeve; Be configured in sleeve above or below nut be attached on the outer screw section of collet chuck, make the collet chuck undergauge with this.
In this 1st form of the present invention, nut preferably by gasket arrangements above or below the sleeve.
And, at the coefficient of linear thermal expansion of establishing pressure-producing part is that the coefficient of linear thermal expansion of A1, collet chuck is that the coefficient of linear thermal expansion of A2, sleeve is that the coefficient of linear thermal expansion of A3, nut is the coefficient of linear thermal expansion of A4, packing ring when being A5, satisfies the relation of A1＞A2 A3 A4 and A5＞A2 A3 A4.
After making such structure, elder generation is clamp nut at room temperature, applies its compression stress to being shaped with parts by pressure-producing part by collet chuck.Then, raising along with temperature, the pressure-producing part of coefficient of linear thermal expansion height (preferably Young's modulus is also high) produces thermal stress (thermal deformation), the Young's modulus of sleeve high more (being preferably in more than the 200GPa), and its thermal stress acts on shaping with on the parts as high more compression stress.In addition, by improving the coefficient of linear thermal expansion of packing ring, nut is lax in the time of preventing the temperature rising, perhaps, this packing ring generation thermal deformation on the direction of fastening collet chuck, the high compression stress that can not produce before can making acts on shaping with on the parts.
That is, paying the total compression stress that is shaped with parts, becoming " fastening force of the collet chuck normal temperature under "+" thermal stress of the pressure-producing part during the temperature rising "+" collet chuck that the expansion of packing ring causes further fastening or prevent to relax ".
In addition, in order to relax the tensile stress to sleeve that is subjected to from pressure-producing part, collet chuck adopts the material (it is following to be preferably in 300GPa) with appropriate Young's modulus, like this, can relax the tensile stress to sleeve, prevents the destruction of sleeve.
As mentioned above, make the coefficient of linear thermal expansion of each parts satisfy the relation of A1＞A2 A3 A4, along with increasing of serviceability temperature, compression stress acts on shaping with on the parts, even the tonnage of pressurization etc. causes tensile stress to act on the whole metal die, also can pay enough compression stresses with parts, offset tensile stress that plastic working produces, mould is not destroyed being shaped.For this reason, whole shaping with parts on tensile stress or the compression stress of effect below the tensile yield strength, use hard-brittle material even be shaped with parts, metal die can not destroy yet, and can improve abrasion performance, improves the life-span greatly.
In addition, by the packing ring clamp nut time, as mentioned above, select suitable material, make the linear thermal expansion number of each parts satisfy the relation of A5＞A2 A3 A4, like this, rising, packing ring expansion along with temperature, stress acts on the direction of nut extension spring collet chuck, and collet chuck is applied compression stress to being shaped with parts by pressure-producing part by further fastening.In addition, even clamp nut at normal temperatures also can pass through packing ring, sleeve, collet chuck and pressure-producing part, apply big compression stress with parts to being shaped.
At this, if pressure-producing part is formed whole ring-type, then along with the rising of processing temperature, because thermal expansion, the internal diameter of pressure-producing part also increases, be not easy to produce the power of compression molding with parts, but, in the 1st form of the present invention, as mentioned above, if periphery slit and interior all slits alternately are set at pressure-producing part upper edge Zhou Fangxiang, then along with the rising of processing temperature, the Overlay in the restraining force that produces by sleeve and the interior periphery slit of pressure-producing part towards the thermal expansion of pressure-producing part Zhou Fangxiang, is suppressed by the buffering effect in interior periphery slit, the diameter in pressure-producing part periphery and interior week is not expanded, performance is towards the direction of compression molding with parts, be the effect that radial direction transmits thermal stress (thermal deformation), so, can apply compression stress to being shaped with parts efficiently.At this moment, in order to apply compression stress to being shaped with parts equably, along Zhou Fangxiang periphery slit and interior all slits are set alternately and equally spaced, and, periphery slit and interior all slits are preferably respectively along the radial direction setting of pressure-producing part, in other words, periphery best and pressure-producing part meets at right angles in reaching in week.
In addition, by pressure-producing part is divided into some parts, each cutting plate is disposed mutually non-contiguously at Zhou Fangxiang, also can obtain same effect.That is, do not contact yet, only apply compression stress with parts being shaped even expand between each cutting plate.At this moment, in order to apply compression stress to being shaped with parts equably, pressure-producing part be preferably in Zhou Fangxiang equably (symmetrically) cut apart.
In the 1st form of the present invention, also can use bolt to replace using nut.At this moment, on sleeve, Zhou upper end or bottom form negative thread portion within it, and at the conical surface that forms in interior week towards the side hole enlargement of negative thread portion, in addition, periphery at collet chuck, form with sleeve in the conical surface that coincide of the conical surface in week, the bolt being configured in above or below the collet chuck is fastened in the negative thread portion of sleeve, like this, make the collet chuck undergauge.In addition, at the coefficient of linear thermal expansion of establishing pressure-producing part is that the coefficient of linear thermal expansion of A1, collet chuck is that the coefficient of linear thermal expansion of A2, sleeve is that the coefficient of linear thermal expansion of A3, bolt is that the coefficient of linear thermal expansion of A6, packing ring is when being A5, according to reason same when using above-mentioned nut, preferably satisfy the relation of A1＞A2 A3 A6 and A5＞A2 A3 A6.Like this, when using bolt, also can obtain and same action effect when using nut.
The forming metal mould of the present invention's the 2nd form, the cylindric shaping that has a forming cavity with encirclement in inside with the mode around the parts chimeric in chow ring, and with surround chow ring in this around mode chimeric peripheral ring, it is characterized in that interior chow ring is paid structural member by pressurization and constituted.Specifically, by this metal mould for formation or interior chow ring (structural member is paid in pressurization) are heated, interior chow ring pressurizes to forming cavity.
In the forming metal mould of the 2nd form of the present invention, the structure that structural member is paid in pressurization is, alternately be provided with periphery slit and interior all slits along Zhou Fangxiang, the mode of described periphery slit below penetrating into above interior chow ring is formed on footpath direction and open in periphery, described in the mode of all slits below above interior chow ring, penetrating into be formed on the footpath direction and at interior Zhou Kaifang.Perhaps, the structure that structural member is paid in pressurization also can be, interior chow ring is divided into some parts at Zhou Fangxiang, respectively cuts apart part configuration non-contiguously mutually.The coefficient of linear thermal expansion of structural member is paid in this pressurization, is preferably in more than the coefficient of linear thermal expansion of peripheral ring.In addition, the Young's modulus of peripheral ring is preferably in more than the 200GPa.
Like this, in the 2nd form of the present invention, this forming metal mould or interior chow ring (structural member is paid in pressurization) are heated, interior chow ring is paid structural member to shaping with the pressurization that parts apply the such structure of compression stress as having, like this, even being shaped with parts is hard-brittle materials, also can not destroying is shaped uses parts, the life-span of improving metal die greatly.In addition, the coefficient of linear thermal expansion that structural member is paid in pressurization is preferably in more than the coefficient of linear thermal expansion of peripheral ring, Young's modulus by the combination peripheral ring is a material more than the 200GPa, can the stress that thermal deformation produced (thermal stress) that structural member is paid in pressurization be passed to effectively is shaped uses parts, can pay structural member with pressurization, compression stress be imposed on to be shaped efficiently use parts.
At this, if being paid structural member, pressurization forms whole ring-type, then with the invention described above the 1st form in about the explanation of pressure-producing part similarly, temperature rising along with interior chow ring (structural member is paid in pressurization), because its internal diameter of thermal expansion also increases, be not easy to act on the power of compression molding with parts, but, in the 2nd form of the present invention, as mentioned above, structural member is paid in pressurization become the structure that alternately is provided with periphery slit and interior all slits along Zhou Fangxiang, the mode of described periphery slit below penetrating into above interior chow ring is formed on the footpath direction, the mode of all slits below penetrating into above interior chow ring is formed on the footpath direction in periphery open, is described, at interior Zhou Kaifang; Perhaps, structural member is paid in pressurization become following structure, promptly, interior chow ring is divided into some parts on Zhou Fangxiang, makes and respectively cut apart part configuration non-contiguously mutually, like this, with pressure-producing part in the 1st form of the present invention similarly, can pay compression stress to being shaped with parts efficiently.
In addition, it at the coefficient of linear thermal expansion of selecting pressurization to pay structural member the material more than the coefficient of linear thermal expansion of peripheral ring, and, when strengthening the Young's modulus of peripheral ring as far as possible, temperature rising along with this forming metal mould or interior chow ring (structural member is paid in pressurization), act on shaping with on the parts, mainly by pressurization pay the thermal stress that structural member produces caused, further increase towards the compression stress of forming cavity effect, shaping can not come off with parts, and compression stress can not act on shaping with on the parts.In addition, even pay under the structural member situation identical with the coefficient of linear thermal expansion of peripheral ring in pressurization, usually use hard-brittle material owing to be shaped with parts, so its coefficient of linear thermal expansion is paid structural member than pressurization or peripheral ring is little, therefore, compression stress acts on shaping with on the parts, even temperature rises, shaping can not come off with parts yet, and compression stress can not act on shaping with on the parts yet.Certainly, the coefficient of linear thermal expansion of the coefficient of linear thermal expansion of structural member more preferably greater than peripheral ring paid in pressurization.
Here, if the Young's modulus of peripheral ring is little, then in heating environment, expand even structural member is paid in pressurization, peripheral ring is also opened expansion, and compression stress can not act on shaping efficiently with on the parts, so the Young's modulus of peripheral ring is preferably big as far as possible.Be preferably in more than the 200GPa.
In the above in Shuo Ming the forming metal mould of the present invention, shaping is used hard-brittle material with parts, even under the environment of the contour tensile stress effect of plastic working of the such difficult plastic working material of tungsten, pressure-producing part also can act on the tensile stress of the stretching yield stress that being lower than is shaped uses parts or keep the compression stress of compression stress, so, even to the shaping that constitutes by hard-brittle material with the high tonnage of parts effect, metal die can not destroy yet, and can improve abrasion performance, improve die life greatly.
When this shaping was used the high-speed steel of hard-brittle material with parts, because the toughness height, even under the behaviour in service of high tensile stress effect, metal die did not destroy yet.Similarly, when being shaped with parts use superhard alloy, owing to have hardness and toughness concurrently, so, be not easy abrasion, even under the behaviour in service of tensile stress effect, metal die can not destroy yet.Similarly, when being shaped, though toughness is than superhard alloy difference, owing to the hardness height, so abrasion performance is stronger than superhard alloy with parts use cermet.In addition, when being shaped, though toughness is than cermet difference, owing to the hardness height, so abrasion performance is stronger than cermet with parts use pottery.In addition, when being shaped with parts use diamond, because hardness is the highest in natural minerals, so the abrasion performance height, the surface of shaping thing becomes smooth state.About diamond, can adopt the synthetic diamond of natural diamond or HTHP, perhaps also can adopt the so-called sintered diamond that metals such as Co, Ni are formed as the binding agent sintering.
When using forming metal mould of the present invention, serviceability temperature is higher than room temperature, and then pressure-producing part (structural member is paid in pressurization) thermal expansion more will apply higher compression stress on being shaped with parts, so, be adapted at being higher than the shaping under the hot conditions of normal temperature.In addition, in forming metal mould before shown in Figure 12 described later (the dual shrunk fit of superhard alloy cooperates product), under 400 ℃ serviceability temperature, have only the compression stress about 0.4GPa to act on shaping at most with on the parts, and in forming metal mould of the present invention, have the above compression stress of 2GPa to act on shaping approximately with on the parts.
Like this, more at high temperature use, it is big more with the compression stress on the parts to act on shaping, so, be suitable for obtaining under the situations such as formed body of the such difficult plastic deformation material of tungsten, plastic workings such as pressure processing at high temperature.
The invention effect
If adopt forming metal mould of the present invention, even then under as the difficult plastic working material to tungsten etc. carries out plastic working, to the environment that is shaped with the high tensile stress of parts effect, also can apply high compression stress with parts to whole shaping, even being shaped with parts is hard-brittle materials, shaping can not destroy with parts yet, can improve the life-span of metal die greatly.Especially be shaped when being hard-brittle material, can improving abrasion performance, further prolong life-span of metal die with parts.
Description of drawings
Fig. 1 is the exploded perspective view of the 1st embodiment of expression forming metal mould of the present invention.
Fig. 2 is the sectional stereogram of the assembled state of expression forming metal mould shown in Figure 1.
Fig. 3 be forming metal mould component parts, be the vertical view of pressure-producing part.
Fig. 4 is the sectional stereogram of the 2nd embodiment of expression forming metal mould of the present invention.
Fig. 5 is the sectional stereogram of the 3rd embodiment of expression forming metal mould of the present invention.
Fig. 6 is the sectional stereogram of the 4th embodiment of expression forming metal mould of the present invention.
Fig. 7 is the sectional stereogram of the 5th embodiment of expression forming metal mould of the present invention.
Fig. 8 is the stereogram of the 6th embodiment of expression forming metal mould of the present invention.
Fig. 9 is the stereogram of the 7th embodiment of expression forming metal mould of the present invention.
Figure 10 represents the change of shape of the formed products that caused by warm forging.
Figure 11 represents the change of shape of the formed products that caused by pressurization.
Figure 12 is a sectional stereogram of representing forming metal mould before.
The specific embodiment
(the 1st embodiment)
Fig. 1 is the exploded perspective view of the 1st embodiment of expression forming metal mould of the present invention.Fig. 2 is the sectional stereogram of its assembled state of expression.Fig. 3 be forming metal mould component parts, be the vertical view of pressure-producing part.
Illustrated forming metal mould constitutes with parts 1, pressure-producing part 2, collet chuck 3, sleeve 4, packing ring 5, nut 6 and pad 7 by being shaped.
For being shaped with parts 1, the portion top has forming cavity 1a within it, and with surround be shaped with the mode around the parts 1 chimeric the pressure-producing part 2 of ring-type.As shown in Figure 3, on pressure-producing part 2, alternately and equally spaced be provided with periphery slit 2a and interior all slit 2b along Zhou Fangxiang.The mode of periphery slit 2a below penetrating into above pressure-producing part 2 is formed on the footpath direction, and be only open in periphery.On the other hand, the mode of interior all slit 2b below penetrating into above pressure-producing part 2 is formed on the footpath direction, only at interior Zhou Kaifang.
This shaping is positioned on the pad 7 with parts 1 and pressure-producing part 2, with surround they around mode chimeric the collet chuck 3 of ring-type.Be formed with outer screw section 3a in the bottom of collet chuck 3,, be formed with conical surface 3b towards outer screw section 3a side (being among the figure) undergauge towards the below in the periphery of collet chuck 3.This conical surface 3b is formed into the middle part from the upper end of collet chuck 3 always.
Around collet chuck 3, chimeric the sleeve 4 of ring-type.In the interior week of this sleeve 4, be formed with identical conical surface 4a with the conical surface 3b of collet chuck 3 peripheries.That is, the conical surface 4a and the conical surface 3 are similarly towards the below undergauge.
Below sleeve 4, disposing packing ring 5, nut 6 is being screwed on the outer screw section 3a of collet chuck 3 from its below.Like this, collet chuck 3 is stretched towards the below, and its conical surface 3b slides downwards along the conical surface 4b of sleeve 4, and collet chuck 3 undergauges apply compression stress by 2 pairs of shapings of pressure-producing part with parts 1 thus.
In addition, at the coefficient of linear thermal expansion of establishing pressure-producing part 2 is that the coefficient of linear thermal expansion of A1, collet chuck 3 is that the coefficient of linear thermal expansion of A2, sleeve 4 is that the coefficient of linear thermal expansion of A3, nut 6 is that the coefficient of linear thermal expansion of A4, packing ring 5 is when being A5, satisfy the relation of A1＞A2 A3 A4 and A5＞A2 A3 A4, thus, as mentioned above, along with increasing of serviceability temperature, higher compression stress is acted on be shaped with on the parts 1.
(the 2nd embodiment)
Fig. 4 is the sectional stereogram of the 2nd embodiment of expression forming metal mould of the present invention.Forming metal mould shown in this figure has omitted the packing ring in the forming metal mould of the 1st embodiment.Other structure is identical with the 1st embodiment, and identical construction is partly annotated with same tag, and its explanation is omitted.
In the present embodiment,, pass through the fastening force of adjustment collet chuck 3 etc., can pay the compression stress same with the 1st embodiment though can not get the compression stress that thermal expansion produced of packing ring.
(the 3rd embodiment)
Fig. 5 is the sectional stereogram of the 3rd embodiment of expression forming metal mould of the present invention.In the forming metal mould shown in this figure, pressure-producing part 2 is divided into some parts equably along Zhou Fangxiang, each cutting plate is disposing mutually non-contiguously.Other structure is identical with the 1st embodiment, and identical construction is annotated with identical mark, and its explanation is omitted.
This embodiment also has the action effect same with the 1st embodiment.
(the 4th embodiment)
Fig. 6 is the sectional stereogram of the 4th embodiment of expression forming metal mould of the present invention.Forming metal mould shown in this figure has omitted the packing ring in the forming metal mould of the 3rd embodiment.Other structure is identical with the 3rd embodiment, and identical construction is annotated with same tag, and its explanation is omitted.
This embodiment also has the action effect same with the 2nd embodiment.
(the 5th embodiment)
Fig. 7 is the sectional stereogram of the 5th embodiment of expression forming metal mould of the present invention.In the respective embodiments described above, for fastening collet chuck has used nut, then use bolt 8 in the present embodiment.With the respective embodiments described above identical construction part, to annotate with same tag, its explanation is omitted.
Specifically, be formed with the 4b of negative thread portion, the bolt 8 with hexagon ring is screwed into the 4b of this negative thread portion and fastening by packing ring 5 in interior all upper ends of sleeve 4.In addition,, be formed with the conical surface 4a that enlarges towards the 4b of negative thread portion side,, be formed with identical conical surface 3b with the conical surface 4a of sleeve 4 in the periphery of collet chuck 3 in the interior week of sleeve 4.
Therefore, the 4b of negative thread portion that bolt 8 is screwed into sleeve 4 is also fastening, thus, collet chuck 3 is pushed towards the below, and its conical surface 3b slides downwards along the conical surface 4a of sleeve 4, thus, collet chuck 3 undergauges apply compression stress by 2 pairs of shapings of pressure-producing part with parts 1.
In addition, at the coefficient of linear thermal expansion of establishing pressure-producing part 2 is that the coefficient of linear thermal expansion of A1, collet chuck 3 is that the coefficient of linear thermal expansion of A2, sleeve 4 is that the coefficient of linear thermal expansion of A3, bolt 8 is that the coefficient of linear thermal expansion of A6, packing ring 5 is when being A5, satisfy the relation of A1＞A2 A3 A6 and A5＞A2 A3 A6, thus, as mentioned above, along with increasing of serviceability temperature, higher compression stress is acted on be shaped with on the parts 1.
(the 6th embodiment)
Fig. 8 is the stereogram of the 6th embodiment of expression forming metal mould of the present invention.Forming metal mould shown in this figure is by being shaped with parts 11, paying structural member 12 and peripheral ring 13 constitutes as the pressurization of interior chow ring.
Be shaped with parts 11, the portion top has forming cavity 11a within it, around it, cooperates the pressurization of chimeric ring-type to pay structural member 12 by shrunk fit, and, around it, cooperate chimeric peripheral ring 13 by shrunk fit.Pay on the structural member 12 in pressurization, alternately equally spaced respectively be provided with 8 periphery slit 12a and interior all slit 12b along Zhou Fangxiang.Periphery slit 12a from pressurization pay structural member 12 above penetrate into below, be formed on the footpath direction, only open in periphery.On the other hand, interior all slit 12b from pressurization pay structural member 12 above penetrate into below, be formed on the footpath direction, only at interior Zhou Kaifang.
(the 7th embodiment)
Fig. 9 is the stereogram of the 7th embodiment of expression forming metal mould of the present invention.Forming metal mould shown in this figure is divided into endless member equably 8 parts, pays structural member 12 as pressurization at Zhou Fangxiang.Each cutting plate is configured in the periphery that is shaped with parts 11 mutually non-contiguously, in addition, with shrunk fit cooperate peripheral ring 13 be entrenched in pressurize pay structural member 12 around.Other structure is identical with the 6th embodiment, and identical construction is annotated with same tag, and its explanation is omitted.
This embodiment also has the action effect same with the 6th embodiment.
Below, the specific embodiment of the forming metal mould of above-mentioned the 1st, the 3rd, the 6th and the 7th embodiment is described.
Using the forming metal mould of above-mentioned the 1st embodiment, is that 2.5mm, length are the piece (チ ッ プ) of the Mo system of 3.0mm, the pin of manufacturing torch type with the warm forging diameter as illustrated in fig. 10, estimates die life with this.In addition, for relatively, also used forming metal mould before shown in Figure 12.This forming metal mould before is merely to surround the dual shrunk fit fit system that is shaped with around the parts 1 with two endless members 20,40.Shaping is 0.006mm with the chimeric surplus of parts 1 and endless member 20, and endless member 20 is 0.015mm with the chimeric surplus of endless member 40.In the following description, endless member 20,40 respectively as with the present invention in pressure-producing part 2, sleeve 4 corresponding components describe.
At this, be shaped and use high-speed steel, superhard alloy, cermet, pottery, the diamond of hard-brittle material with parts.Specifically, high-speed steel employing mould is high-speed steel (マ ト リ ッ Network ス is Ha ィ ス) (Hitachi Metals (strain) system YXR33, coefficient of linear thermal expansion Tc=12.1 * 10
-6/ ℃ (20～400 ℃)).It is superhard alloy (Japanese tungsten (strain) system G30, Tc=5.7 * 10 that superhard alloy adopts WC-Co
-6/ ℃ (20～400 ℃)) and WC-Co be ultra micron superhard alloy (Japanese tungsten (strain) system FN-10, Tc=5.1 * 10
-6/ ℃ (20～400 ℃)).Cermet adopts Cr-Mo-Ni-W iron-based complex boride (Iron Ji Complex boride) (Japan's steel plate (strain) system KH-V60, Tc=8.8 * 10
-6/ ℃ (20～400 ℃)).Pottery adopts Si
3N
4Sintered body (Japanese tungsten (strain) system NPN-3, Tc=3.6 * 10
-6/ ℃ (20～400 ℃)).It is sintered diamond (Tc=3.1 * 10 of binding agent that diamond adopts with Co
-6/ ℃ (20～400 ℃)).
As pressure-producing part, the SKD-61 of tool using steel (JIS standard, coefficient of linear thermal expansion A1=12.54 * 10 in an embodiment of the present invention
-6/ ℃ (20～400 ℃), Young's modulus Ep=210GPa), using WC-Co in comparative example is superhard alloy (Japanese tungsten (strain) system G30, Tc=5.7 * 10
-6/ ℃ (20～400 ℃)).Collet chuck uses superalloy HRA929 (Hitachi Metals (strain) system, coefficient of linear thermal expansion A2=5.5 * 10
-6/ ℃ (400 ℃ time)/ 5.9 * 10
-6/ (during room temperature).It is superhard alloy (Japanese tungsten (strain) system G30, coefficient of linear thermal expansion A3=5.7 * 10 that sleeve uses WC-Co
-6/ ℃ (20～400 ℃)) or WC-Ni be superhard alloy (Japanese tungsten (strain) system NR-8, A3=5.7 * 10
-6/ ℃ (20～400 ℃)).Nut uses superalloy HRA929 (Hitachi Metals (strain) system, coefficient of linear thermal expansion A4=5.5 * 10
-6/ ℃ (400 ℃ time)/ 5.9 * 10
-6/ (during room temperature).Packing ring uses SKD-61 (JIS standard, coefficient of linear thermal expansion A5=12.54 * 10
-6/ ℃ (20～400 ℃)).
Processing conditions is that the working pressure machine carries out 400 ℃ warm forging (heating this metal mould with sheathed heater).The abrasion loss that the moment of destroying with parts being shaped or the shaping corresponding with the A portion 45 degree direction (see figure 10)s of forming cavity are extruded little oral area with the place ahead of parts reaches the processing number (シ ョ ッ ト number) in the moment of 0.04mm, estimates as the life-span.In addition, abrasion loss reads like this: the little oral area of extruding of forming cavity the place ahead is designed to R0.2mm, the change of shape that is replicated in this part on the formed products (abrasion loss of=forming cavity) with the projector projection, read.
Result of the test is as shown in table 1.
Table 1
| Sample | The shaping parts | Pressure-producing part | Collet chuck | Sleeve | Nut | Packing ring | The result | |
| The present invention | 1 | High-speed steel | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 800, the abrasion life-span |
| 2 | WC-Co is a superhard alloy | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 15900, the abrasion life-span | |
| 3 | WC-Ni is a superhard alloy | SKD-61 | Superalloy HRA929 | WC-Ni is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 13800, waste the consumption life-span | |
| 4 | WC-Co is the ultra micron superhard alloy | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 18400, the abrasion life-span | |
| 5 | Cermet | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 22300, the crackle life-span | |
| 6 | Pottery | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 36400, the crackle life-span | |
| 7 | Diamond | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process 120902, the crackle life-span | |
| Comparative example | 8 | High-speed steel | WC-Co is a superhard alloy | - | WC-Co is a superhard alloy | - | - | Process 314, the crackle life-span |
| 9 | WC-Co is a superhard alloy | WC-Co is a superhard alloy | - | WC-Co is a superhard alloy | - | - | Process 1, the damaged life-span | |
| 10 | Cermet | WC-Co is a superhard alloy | - | WC-Co is a superhard alloy | - | - | Process 1, the damaged life-span | |
| 11 | Pottery | WC-Co is a superhard alloy | - | WC-Co is a superhard alloy | - | - | Process 1, the damaged life-span | |
As known from Table 1, according to the present invention, can obtain abrasion performance, breakage resistance height and long-life forming metal mould.
And in forming metal mould (comparative example) before, that can not bear that the tonnage that adds man-hour causes acts on tensile stress on the metal die, damaged at short notice, can not get the practical required life-span.
Use the forming metal mould of above-mentioned the 3rd embodiment, carry out the test same with the foregoing description 1.Each parts of forming metal mould also with embodiment 1 in identical.
Result of the test is as shown in table 2.
Table 2
| Sample | The shaping parts | Pressure-producing part | Collet chuck | Sleeve | Nut | Packing ring | The result | |
| The present invention | 1 | High-speed steel | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 700, the abrasion life-span |
| 2 | WC-Co is a superhard alloy | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 15200, the abrasion life-span | |
| 3 | WC-Ni is a superhard alloy | SKD-61 | Superalloy HRA929 | WC-Ni is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 14600, the abrasion life-span | |
| 4 | WC-Co is the ultra micron superhard alloy | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 19000, the abrasion life-span | |
| 5 | Cermet | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 22100, the crackle life-span | |
| 6 | Pottery | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process about 37200, the crackle life-span | |
| 7 | Diamond | SKD-61 | Superalloy HRA929 | WC-Co is a superhard alloy | Superalloy HRA929 | SKD-61 | Process 128580, the crackle life-span | |
| Comparative example | 8 | High-speed steel | WC-Co is a superhard alloy | - | WC-Co is a superhard alloy | - | - | Process 314, the crackle life-span |
| 9 | WC-Co is a superhard alloy | WC-Co is a superhard alloy | - | WC-Co is a superhard alloy | - | - | Process 1, the damaged life-span | |
| 10 | Cermet | WC-Co is a superhard alloy | - | WC-Co is a superhard alloy | - | - | Process 1, the damaged life-span | |
| 11 | Pottery | WC-Co is a superhard alloy | - | WC-Co is a superhard alloy | - | - | Process 1, the damaged life-span | |
As known from Table 2, in the present embodiment, also can obtain abrasion performance, breakage resistance height and long-life forming metal mould.
With condition similarly to Example 1, the heater of adhesive type etc. directly is contained in or inserts collet chuck, perhaps whole metal die is heated to 200～800 ℃ with infrared ray etc., improving temperature with this pressurizes, at this moment, difficult plastic working thing also becomes and processes easily, can improve process velocity, affact shaping and be about 1.2～1.5 times of embodiment 1 with the compression stress on the parts, even the high tonnage of effect when the such difficult plastic working thing of W material is carried out plastic working, metal die also can be damaged, and the life-span of metal die and processing are more identical during the Mo material of processing easily than W material.
Using the forming metal mould of above-mentioned the 6th embodiment, as shown in figure 11, is that 2.2mm, length are the piece of the Mo system of 2.4mm, the pin of manufacturing torch type with warm pressurization diameter, estimates die life with this.When pressurization, the inside of structural member 12 is paid in pressurization with sheathed heater is heated to about 400 ℃.And,, also used aforementioned forming metal mould before shown in Figure 12 for relatively.In the following description, the endless member in the forming metal mould before shown in Figure 12 20,40 respectively as with the present invention in pressurization pay structural member 12 (interior chow ring), peripheral ring 13 corresponding components describe.
At this, be shaped and use parts, use high-speed steel, superhard alloy, cermet, pottery, the diamond of hard-brittle material.Specifically, high-speed steel employing mould is high-speed steel (Hitachi Metals (strain) system YXR33, coefficient of linear thermal expansion Tc=12.1 * 10
-6/ ℃ (20～400 ℃)).It is superhard alloy (Japanese tungsten (strain) system G30, Tc=5.7 * 10 that superhard alloy adopts WC-Co
-6/ ℃ (20～400 ℃)) and WC-Co be ultra micron superhard alloy (Japanese tungsten (strain) system FN-10, Tc=5.1 * 10
-6/ ℃ (20～400 ℃)).Cermet adopts Cr-Mo-Ni-W iron-based complex boride (Japan's steel plate (strain) system KH-V60, Tc=8.8 * 10
-6/ ℃ (20～400 ℃)).Pottery adopts Si
3N
4Sintered body (Japanese tungsten (strain) system NPN-3, Tc=3.6 * 10
-6/ ℃ (20～400 ℃)).It is sintered diamond (Tc=3.1 * 10 of binding agent that diamond adopts with Co
-6/ ℃ (20～400 ℃)).Structural member (interior chow ring), the SKD-61 of tool using steel (JIS standard, Tc=12.54 * 10 are paid in pressurization
-6/ ℃ (20～400 ℃), Young's modulus Ep=210GPa).It is superhard alloy (Japanese tungsten (strain) system G30, Tc=5.7 * 10 that peripheral ring adopts WC-Co
-6/ ℃ (20～400 ℃), Young's modulus Ep=550GPa) or WC-Ni be superhard alloy (Japanese tungsten (strain) system NR-8, Tc=5.7 * 10
-6/ ℃ (20～400 ℃), Young's modulus Ep=530GPa).
Result of the test is as shown in table 3.
When destroying with parts with being shaped or the shaping corresponding abrasion loss of extruding little oral area with the place ahead of parts with forming cavity B portion 45 degree directions (seeing Figure 11) reach the shot number in the 0.04mm moment and estimate.In addition, abrasion loss reads like this: the little oral area of extruding of forming cavity the place ahead is designed to R0.2mm, the change of shape that is replicated in this part on the formed products (abrasion loss of=forming cavity), uses the projector projection, read.
Table 3
| Sample | The shaping parts | Structural member is paid in pressurization | Peripheral ring | The result | |
| The present invention | 1 | High-speed steel | SKD-61 | WC-Co is a superhard alloy | Process about 800, the abrasion life-span |
| 2 | High-speed steel | SKD-61 | WC-Ni is a superhard alloy | Process about 800, the abrasion life-span | |
| 3 | WC-Co is a superhard alloy | SKD-61 | WC-Co is a superhard alloy | Process about 12800, the abrasion life-span | |
| 4 | WC-Co is the ultra micron superhard alloy | SKD-61 | WC-Ni is a superhard alloy | Process about 15400, the abrasion life-span | |
| 5 | Cermet | SKD-61 | WC-Co is a superhard alloy | Process about 18300, the crackle life-span | |
| 6 | Cermet | SKD-61 | WC-Ni is a superhard alloy | Process about 18300, the crackle life-span | |
| 7 | Pottery | SKD-61 | WC-Co is a superhard alloy | Process about 19000, the crackle life-span | |
| 8 | Pottery | SKD-61 | WC-Ni is a superhard alloy | Process about 19000, the crackle life-span | |
| 9 | Diamond | SKD-61 | WC-Co is a superhard alloy | Process about 1,100 ten thousand, the crackle life-span | |
| 10 | Diamond | SKD-61 | WC-Ni is a superhard alloy | Process about 1,100 ten thousand, the crackle life-span | |
| Comparative example | 11 | High-speed steel | SKD-61 | WC-Co is a superhard alloy | Process about 500, the crackle life-span |
| 12 | Superhard alloy | SKD-61 | WC-Co is a superhard alloy | Process 1, the damaged life-span | |
| 13 | Cermet | SKD-61 | WC-Co is a superhard alloy | Process 1, the damaged life-span | |
| 14 | Pottery | SKD-61 | WC-Co is a superhard alloy | Process 1, the damaged life-span | |
| 15 | Diamond | SKD-61 | WC-Co is a superhard alloy | Process 1, the damaged life-span | |
As known from Table 3, according to the present invention, can obtain abrasion performance, breakage resistance height and long-life forming metal mould.
As shown in table 3, in the embodiments of the invention, it is that high-speed steel, WC-Co are that superhard alloy, WC-Co are ultra micron superhard alloy, Cr-Mo-Ni-W iron-based complex boride, Si that shaping is used the mould of hard-brittle material with parts
3N
4Sintered body, with the sintered diamond of Co as binding agent.The SKD-61 of structural member (interior chow ring) tool using steel is paid in pressurization.It is that superhard alloy or WC-Ni are superhard alloy that peripheral ring uses WC-Co.But,, also can obtain same result being shaped when adopting other high-speed steel, superhard alloy, cermet, pottery, diamond with parts.
And in forming metal mould (comparative example) before, can not bear the caused tensile stress of the tonnage that adds man-hour to the metal die effect, and damaged at short notice, can not get the practical required life-span.
With the condition same with the foregoing description 4, the heater of sheathed heater etc. is inserted the inside that structural member is paid in pressurization, perhaps whole metal die is heated to about 600 ℃, pressurizes to improve about 200 ℃ temperature than embodiment 4 with this with infrared lamp etc.Its result, the plastic working of difficult plastic working thing becomes easily, and simultaneously, resistance also increases than embodiment 4, and this resistance is only offset by what this plastic working power produced and is used the tensile failure power of parts to being shaped, and makes handling ease and improves extrusion speed.Specifically, acting on shaping is among the embodiment 4 1.2 to 1.5 times with the compression stress on the parts, even the high tonnage of effect when the such difficult plastic working thing of W material is carried out plastic working, metal die also can be damaged, its life-span and processing are more identical during the Mo material of processing easily than W material.
With the condition identical with the foregoing description 4, using by WC-Co is that the structure of superhard alloy manufacturing forms pressurization in the identical mode of coefficient of linear thermal expansion and pays structural member and peripheral ring, pressurizes.As mentioned above, normally used shaping parts are hard-brittle materials, so, its coefficient of linear thermal expansion pay structural member than pressurization and peripheral ring little, compression stress acts on shaping with on the parts, so, when difficult processing plastic working material, even tonnage increases, tensile stress acts on shaping with on the parts, because acting on the compression stress of only offsetting this tensile stress, so, be shaped and also can not destroy with parts, as long as be heated to more than the ductility brittle transition temperature, not only Mo, even the plastic working of the difficult plastic working thing that W is such also is possible.
With the forming metal mould of above-mentioned the 7th embodiment, carry out the test same with the foregoing description 4.Each parts of forming metal mould also with embodiment 4 in identical.
Result of the test is as shown in table 4.
Table 4
| Sample | The shaping parts | Structural member is paid in pressurization | Peripheral ring | The result | |
| The present invention | 1 | High-speed steel | SKD-61 | WC-Co is a superhard alloy | Process about 800, the abrasion life-span |
| 2 | High-speed steel | SKD-61 | WC-Ni is a superhard alloy | Process about 800, the abrasion life-span | |
| 3 | WC-Co is a superhard alloy | SKD-61 | WC-Co is a superhard alloy | Process about 12800, the abrasion life-span | |
| 4 | WC-Co is the ultra micron superhard alloy | SKD-61 | WC-Ni is a superhard alloy | Process about 15400, the abrasion life-span | |
| 5 | Cermet | SKD-61 | WC-Co is a superhard alloy | Process about 18300, the crackle life-span | |
| 6 | Cermet | SKD-61 | WC-Ni is a superhard alloy | Process about 18300, the crackle life-span | |
| 7 | Pottery | SKD-61 | WC-Co is a superhard alloy | Process about 19000, the crackle life-span | |
| 8 | Pottery | SKD-61 | WC-Ni is a superhard alloy | Process about 19000, the crackle life-span | |
| 9 | Diamond | SKD-61 | WC-Co is a superhard alloy | Process about 1,100 ten thousand, the crackle life-span | |
| 10 | Diamond | SKD-61 | WC-Ni is a superhard alloy | Process about 1,100 ten thousand, the crackle life-span | |
| Comparative example | 11 | High-speed steel | SKD-61 | WC-Co is a superhard alloy | Process about 500, the crackle life-span |
| 12 | Superhard alloy | SKD-61 | WC-Co is a superhard alloy | Process 1, the damaged life-span | |
| 13 | Cermet | SKD-61 | WC-Co is a superhard alloy | Process 1, the damaged life-span | |
| 14 | Pottery | SKD-61 | WC-Co is a superhard alloy | Process 1, the damaged life-span | |
| 15 | Diamond | SKD-61 | WC-Co is a superhard alloy | Process 1, the damaged life-span | |
As known from Table 4, according to the present invention, can obtain abrasion performance, breakage resistance is high and long-life forming metal mould.
As shown in table 4, in an embodiment of the present invention, it is that high-speed steel, WC-Co are that superhard alloy, WC-Co are ultra micron superhard alloy, Cr-Mo-Ni-W iron-based complex boride, Si that shaping is used the mould of hard-brittle material with parts
3N
4Sintered body, with the sintered diamond of Co as binding agent.The SKD-61 of structural member (interior chow ring) tool using steel is paid in pressurization.It is that superhard alloy or WC-Ni are superhard alloy that peripheral ring uses WC-Co.But, be shaped when adopting other high-speed steel, superhard alloy, cermet, pottery, diamond with parts, also can obtain same result.
And in forming metal mould (comparative example) before, can not bear that the tonnage that adds man-hour causes, act on the tensile stress on the metal die, damaged at short notice, can not get the practical required life-span.
Embodiment 8
With the condition same with the foregoing description 7, the heater of sheathed heater etc. is inserted the inside that structural member is paid in pressurization, perhaps whole metal die is heated to about 600 ℃, pressurizes to have improved about 200 ℃ temperature than embodiment 6 with this with infrared lamp etc.Its result, the plastic working of difficult plastic working thing becomes easily, and simultaneously, resistance also increases than embodiment 6, and this resistance is only offset by what this plastic working power was produced and is used the tensile failure power of parts to being shaped, and makes handling ease and improves extrusion speed.Specifically, acting on shaping is among the embodiment 6 1.2 to 1.5 times with the compression stress on the parts, even the high tonnage of effect when the such difficult plastic working thing of W material is carried out plastic working, metal die can not destroy yet, and its life-span and processing are more identical during the Mo material of processing easily than W material.
Embodiment 9
With the condition same with the foregoing description 7, using by WC-Co is that the structure of superhard alloy manufacturing forms pressurization in the identical mode of coefficient of linear thermal expansion and pays structural member and peripheral ring, pressurizes.As mentioned above, normally used shaping parts are hard-brittle materials, so, its coefficient of linear thermal expansion pay structural member than pressurization and peripheral ring little, compression stress acts on shaping with on the parts, so, when difficult processing plastic working material, even tonnage increases, tensile stress acts on shaping with on the parts, owing to acting on the compression stress of only offsetting this tensile stress, therefore, be shaped and also can not destroy with parts, as long as be heated to more than the ductility brittle transition temperature, not only Mo, even the plastic working of the difficult plastic working thing that W is such also is possible.
Industrial applicibility
According to forming metal mould of the present invention, even such high, the difficult metal of plastic working of fusing point of Mo, W, Ta, Nb as long as make the mould that is used to form given shape, just can obtain the formed body of required form. For example, can be used for the manufacturing of electrode for discharge lamp. In addition, in forming metal mould of the present invention, along with the rising of processing temperature, larger compression stress acts on the metal die, so, be particularly suitable for the processing of the metal that the such melting point of Mo, W, Ta, Nb is high, plastic working is difficult, tonnage is large.
In addition, also be applicable to require high dimensional accuracy, need strong confining force and have the purposes (for example, the precision clamping head of the throw such as slotting cutter) of abrasion performance with respect to maintaining part.
Claims (19)
1. forming metal mould, with be enclosed in cylindric shaping that inside has a forming cavity with the mode around the parts chimeric the pressure-producing part of ring-type, and with surround this pressure-producing part around mode chimeric the collet chuck of ring-type, further, with surround this collet chuck around mode chimeric the sleeve of ring-type, it is characterized in that
Alternately be provided with periphery slit and interior all slits at pressure-producing part upper edge Zhou Fangxiang, the mode of described periphery slit below penetrating into above pressure-producing part is formed on footpath direction, open in periphery; In described the mode of all slits below above pressure-producing part, penetrating into be formed on the footpath direction, at interior Zhou Kaifang;
Collet chuck end or bottom thereon has outer screw section, and, have the conical surface in the periphery of collet chuck towards outer screw section side undergauge;
Having in interior week and the identical conical surface of the conical surface of collet chuck periphery of sleeve;
Be configured in sleeve above or below nut be attached on the outer screw section of collet chuck, make the collet chuck undergauge with this.
2. forming metal mould, with be enclosed in cylindric shaping that inside has a forming cavity with the mode around the parts chimeric the pressure-producing part of ring-type, and with surround this pressure-producing part around mode chimeric the collet chuck of ring-type, further, with surround this collet chuck around mode chimeric the sleeve of ring-type, it is characterized in that
Pressure-producing part is divided into some parts along Zhou Fangxiang, respectively cuts apart part and is disposing non-contiguously mutually; Upper end or bottom at collet chuck have outer screw section, and have the conical surface towards outer screw section side undergauge in the periphery of collet chuck;
Having in interior week and the identical conical surface of the conical surface of collet chuck periphery of sleeve;
The nut that is configured in above or below the sleeve is attached on the outer screw section of collet chuck, makes the collet chuck undergauge with this.
3. forming metal mould as claimed in claim 1 or 2, it is characterized in that, at the coefficient of linear thermal expansion of establishing pressure-producing part is that the coefficient of linear thermal expansion of A1, collet chuck is that the coefficient of linear thermal expansion of A2, sleeve is the coefficient of linear thermal expansion of A3, nut when being A4, satisfies the relation of A1＞A2 A3 A4.
4. as each described forming metal mould in the claim 1 to 3, it is characterized in that, nut by gasket arrangements above or below the sleeve, at the coefficient of linear thermal expansion of establishing collet chuck is that the coefficient of linear thermal expansion of A2, sleeve is that the coefficient of linear thermal expansion of A3, nut is the coefficient of linear thermal expansion of A4, packing ring when being A5, satisfies the relation of A5＞A2 A3 A4.
5. forming metal mould, with be enclosed in cylindric shaping that inside has a forming cavity with the mode around the parts chimeric the pressure-producing part of ring-type, and with surround this pressure-producing part around mode chimeric the collet chuck of ring-type, further, with surround this collet chuck around mode chimeric the sleeve of ring-type, it is characterized in that
On pressure-producing part, alternately be provided with periphery slit and interior all slits along Zhou Fangxiang, the mode of described periphery slit below penetrating into above pressure-producing part is formed on footpath direction, open in periphery, described in the mode of all slits below above pressure-producing part, penetrating into be formed on the footpath direction, at interior Zhou Kaifang;
The upper end or the bottom in week have negative thread portion in sleeve, and week has the conical surface towards the side hole enlargement of negative thread portion in sleeve;
The periphery of collet chuck have with sleeve in the conical surface that coincide of the conical surface in week;
The bolt that is configured in above or below the collet chuck is attached in the negative thread portion of sleeve, makes the collet chuck undergauge.
6. forming metal mould, with be enclosed in cylindric shaping that inside has a forming cavity with the mode around the parts chimeric the pressure-producing part of ring-type, and with surround this pressure-producing part around mode chimeric the collet chuck of ring-type, further, with surround this collet chuck around mode chimeric the sleeve of ring-type, it is characterized in that
Pressure-producing part is split into some parts at Zhou Fangxiang, respectively cuts apart part and is disposing non-contiguously mutually; Interior all upper ends or bottom at sleeve have negative thread portion, and, at the conical surface of having in interior week of sleeve towards the side hole enlargement of negative thread portion;
The periphery of collet chuck have with sleeve in the conical surface that coincide of the conical surface in week;
The bolt that is configured in above or below the collet chuck is attached in the negative thread portion of sleeve, makes the collet chuck undergauge.
7. as claim 5 or 6 described forming metal moulds, it is characterized in that, at the coefficient of linear thermal expansion of establishing pressure-producing part is that the coefficient of linear thermal expansion of A1, collet chuck is that the coefficient of linear thermal expansion of A2, sleeve is the coefficient of linear thermal expansion of A3, bolt when being A6, satisfies the relation of A1＞A2 A3 A6.
8. as each described forming metal mould in the claim 5 to 7, it is characterized in that, bolt by gasket arrangements above or below the collet chuck, at the coefficient of linear thermal expansion of establishing collet chuck is that the coefficient of linear thermal expansion of A2, sleeve is that the coefficient of linear thermal expansion of A3, bolt is the coefficient of linear thermal expansion of A6, packing ring when being A5, satisfies the relation of A5＞A2 A3 A6.
9. as each described forming metal mould in the claim 1 to 8, it is characterized in that the Young's modulus of sleeve is more than the 200GPa.
10. as each described forming metal mould in the claim 1 to 9, it is characterized in that the Young's modulus of collet chuck is below the 300GPa.
11. forming metal mould, it is characterized in that, with surround have a forming cavity in inside cylindric shaping with the mode around the parts chimeric in chow ring, and with surround chow ring in this around mode chimeric peripheral ring, it is characterized in that interior chow ring is paid structural member by pressurization and constituted.
12. forming metal mould as claimed in claim 11, it is characterized in that, pressurization is paid structural member and is had following structure, promptly, alternately be provided with periphery slit and interior all slits along Zhou Fangxiang, the mode of described periphery slit below penetrating into above interior chow ring is formed on footpath direction, open in periphery; In described the mode of all slits below above interior chow ring, penetrating into be formed on the footpath direction, at interior Zhou Kaifang.
13. forming metal mould as claimed in claim 11 is characterized in that, the structure that structural member is paid in pressurization is, interior chow ring is divided into some parts on Zhou Fangxiang, respectively cuts apart part disposing non-contiguously mutually.
14., it is characterized in that the coefficient of linear thermal expansion of structural member is paid in pressurization, more than the coefficient of linear thermal expansion of peripheral ring as each described forming metal mould in the claim 11 to 13.
15., it is characterized in that the Young's modulus of peripheral ring is more than the 200GPa as each described forming metal mould in the claim 11 to 14.
16., it is characterized in that being shaped is made of hard-brittle material with parts as each described forming metal mould in the claim 1 to 15.
17. forming metal mould as claimed in claim 16 is characterized in that, hard-brittle material is high-speed steel, superhard alloy, cermet, pottery or diamond.
18. the using method of a forming metal mould is characterized in that, is being higher than under the temperature of room temperature, uses each described forming metal mould in the claim 1 to 17.
19. the using method of forming metal mould as claimed in claim 18 is characterized in that, when metal is carried out plastic working, uses forming metal mould.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP161364/2005 | 2005-06-01 | ||
| JP161178/2005 | 2005-06-01 | ||
| JP162000/2005 | 2005-06-01 | ||
| JP2005161178A JP2006334622A (en) | 2005-06-01 | 2005-06-01 | Metallic die and its usage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101189084A true CN101189084A (en) | 2008-05-28 |
Family
ID=37555604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800194161A Pending CN101189084A (en) | 2005-06-01 | 2006-05-26 | Metal mold for molding and method of using the same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006334622A (en) |
| CN (1) | CN101189084A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831385A (en) * | 2012-11-26 | 2014-06-04 | 加特可株式会社 | Forging die |
| CN106457725A (en) * | 2014-03-25 | 2017-02-22 | 住友电工烧结合金株式会社 | Stepped die |
| CN106862459A (en) * | 2017-03-22 | 2017-06-20 | 重庆交通大学 | With the prestressed assembling die of longitudinal multilayer |
| CN107206497A (en) * | 2015-03-31 | 2017-09-26 | 大冶美有限公司 | Sintered body surface densification finishing mold and its manufacture method and product |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114393053A (en) * | 2022-01-18 | 2022-04-26 | 扬州瑞斯乐复合金属材料有限公司 | Preparation method of mold |
-
2005
- 2005-06-01 JP JP2005161178A patent/JP2006334622A/en not_active Withdrawn
-
2006
- 2006-05-26 CN CNA2006800194161A patent/CN101189084A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831385A (en) * | 2012-11-26 | 2014-06-04 | 加特可株式会社 | Forging die |
| CN103831385B (en) * | 2012-11-26 | 2016-08-17 | 加特可株式会社 | Forging mould |
| CN106457725A (en) * | 2014-03-25 | 2017-02-22 | 住友电工烧结合金株式会社 | Stepped die |
| CN106457725B (en) * | 2014-03-25 | 2018-08-28 | 住友电工烧结合金株式会社 | Stairstepping mold |
| CN107206497A (en) * | 2015-03-31 | 2017-09-26 | 大冶美有限公司 | Sintered body surface densification finishing mold and its manufacture method and product |
| CN107206497B (en) * | 2015-03-31 | 2019-07-23 | 大冶美有限公司 | Sintered body surface densification finishing mold, densifying method and obtained product |
| CN106862459A (en) * | 2017-03-22 | 2017-06-20 | 重庆交通大学 | With the prestressed assembling die of longitudinal multilayer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006334622A (en) | 2006-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101189084A (en) | Metal mold for molding and method of using the same | |
| CN101980804B (en) | Method of press-forming tubular member having irregular cross-sectional shape, and tubular member having irregular cross-sectional shape, formed by the press-forming method | |
| US20110020085A1 (en) | Drill and production method | |
| JP2006502868A (en) | Tool with tool shank and cutting head | |
| WO2006129575A1 (en) | Metal mold for molding and method of using the same | |
| US10618099B2 (en) | Sizing die for densifying surface of sintered body, production method using same, and product obtained therefrom | |
| JP2006088197A (en) | Manufacturing method for axial product with expanded head, manufacturing method for engine valve, and forging die used for manufacturing axial product with expanded head | |
| JP2006334630A (en) | Metallic forming die and its usage | |
| US6935482B2 (en) | Clutch gear having boss part with spline and method for manufacturing the same | |
| CN101439362B (en) | Mandrel or mandrel bar for manufacture of pipes | |
| JP2006334624A (en) | Metallic die and its usage | |
| JP4966516B2 (en) | Drilling device and drilling mold for this drilling device | |
| KR101310206B1 (en) | Hige toughness functional graded hard metal tool for friction stir joining and manufacturing method thereof | |
| US20160354819A1 (en) | Extrusion press for producing flat sheets | |
| JP4533869B2 (en) | Two-stage gear compaction mold | |
| KR101557364B1 (en) | Welding tip | |
| CN210754412U (en) | Combined extrusion die for extruding high-temperature alloy pipe and rod | |
| JP4585724B2 (en) | Forging equipment | |
| KR102508207B1 (en) | Molding apparatus | |
| JP2008119731A (en) | Method of manufacturing center-bulged plate member with large thickness | |
| JP4648588B2 (en) | Billet cutting method | |
| JP5441816B2 (en) | Extrusion dies | |
| KR101852723B1 (en) | Guide post for high speed press | |
| CN106958655B (en) | Piston pin and method for manufacturing piston pin | |
| CN1946511B (en) | Powdered metal multi-lobular tooling and method of fabrication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20080528 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |