CN105935775A - Method adopting sintering for associating production of composite assembly containing brass or bronze - Google Patents
Method adopting sintering for associating production of composite assembly containing brass or bronze Download PDFInfo
- Publication number
- CN105935775A CN105935775A CN201610124269.XA CN201610124269A CN105935775A CN 105935775 A CN105935775 A CN 105935775A CN 201610124269 A CN201610124269 A CN 201610124269A CN 105935775 A CN105935775 A CN 105935775A
- Authority
- CN
- China
- Prior art keywords
- powder metal
- sintered
- copper alloy
- press body
- sintering
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention relates to a method adopting sintering for associating production of a composite assembly containing brass or bronze. According to the invention, the composite assembly is provided with a brass or bronze powder metal part fitting with a support and iron part through sintering.
Description
Cross reference to related applications
This application claims the excellent of the U.S. Provisional Patent Application the 62/129144th submitted on March 6th, 2015
First weighing, it is the most incorporated herein by reference.
About federal funding research or the statement of exploitation
Nothing.
Technical field
The present invention relates to powder metallurgic method.In particular it relates to it is independent to manufactured by different materials
Parts carry out the method engaging to be formed composite component, and wherein, at least one components is by containing copper powders
Metal manufactures, by sintering to form pyrite or the bronze part of composite component.
Technical background
Pyrite and bronze material are conventional alloys based on copper, are commonly used for bearing or the application of axle bush class.
Copper and kirsiteization form pyrite, and copper generally formed with tin alloying bronze (but also can make in bronze
Use other elements, such as phosphorus, manganese, aluminum, silicon and nickel).Alloy element in copper or multiple alloying unit
The solid solubility of element usually limit when maintaining single-phase the amount of alloy element in copper.Such as, at 20 DEG C, zinc
Solid solubility in copper is about 37%, and the solid solubility that stannum is in copper is about 10%.
In some existing application, in order to produce bronze bearing surface, loose bronze powder can be applied to the back of the body
Lead-in or steel bar.Such as, in U.S. Patent No. 2226263, apply bronze powder to steel backing strip,
For concordance, powder is smoothed, then powder is sintered with band.Then compound bar is carried out
Cold rolling, to reduce layer thickness.Then will be again heated to sintering temperature through the band of rolling, and again roll.
As another example, in U.S. Patent No. 6854183 (specifically, the 3rd hurdle 30-50 row),
Loose bronze powder is applied to backing, and heats, sinter, roll, the most again sinter, to improve axle
Hold the density on surface.
Therefore, the conventional method producing bronze layer can be time-consuming, needs multiple step, and needs careful
Powdered-metal is applied to surface by ground.There is the demand that manufacture pyrite and Bronze are improved.
Summary of the invention
There is disclosed the ameliorative way producing composite, described composite has pyrite or bronze part
And support or Backing Member.As loose powder material being compressed from the teeth outwards, sinters, roll and carrying out
The replacement of the art methods repeated, in new method, is compacted into powdered-metal compacting by powdered-metal
Body, it shows dimensional variation in sintering process.In order to divide it in bronze or pyrite press body and supporting part
Between form interference engagement (interference fit), the size of press body is adjusted to treat that neighbouring support section connects
Receive.After the sintering, press body shows dimensional variation slightly, and it changes based on real material composition
Become, but the percentage ratio of the lowest units.Generally the yardstick of press body is machined to supporter carefully,
Press body sintering can be coupled on support section (it is to say, can be by press body in sintering process
The dimensional variation of middle generation so that the sintered form of press body is joined on support section).
There may be and be coupled to relevant some on steel assembly to pyrite or bronze powder metal assembly being sintered
Unique feature.
Particularly compared to the sintering of other powdered-metals of great majority, sintered pyrite or the one of bronze parts
Individual marked feature is, pyrite and bronze show the sintering response of uniqueness, respond for this sintering, pyrite
Or bronze can show dimensions shrink or expansion in sintering process.On the contrary, other powdered-metals of great majority
Dimensions shrink is only there is in material after effectively sintering.In the present invention, make use of this dimensional variation motility
The structure via dimensional variation the most do not met is provided to arrange and mechanical engagement.
Another marked feature is, the typical sintering temperature of pyrite and bronze is corresponding to many steel and alloy thereof
Austenitizing temperature.Therefore, by being carefully chosen support or back lining materials, sintering step can be not only
The sintering causing press body makes press body occur sintering to coordinate with support or back lining materials, it is also possible to cause multiple
The austenitizing of the ferrum class part (ferrous portion) of seaming element.Immediately after sintering, can be to complex group
Part carries out quenching and being tempered, to form martensite.Therefore, sintering step can also be the ferrum of assembly synergistically
Class part provides initial heat treatment step.
According to an aspect of the present invention, disclosing the method forming composite component, described composite component has
Sintered copper alloy powder metal part and ferrum class part.The method includes: carry out containing copper powder metal
Compacting, unsintered containing copper powder metal press body to be formed.This contains copper powder metal and comprises copper and one
Or multiple alloy element.Then the unsintered press body containing copper powder metal is disposed adjacent to ferrum class portion
Point, and sinter to be formed the sintered copper alloy powder metal part of composite component.Aforementioned alloy element
Pyrite or bronze material composition is provided for sintered copper alloy powder metal part.Containing unsintered
Copper powder metal press body is sintered being formed the step process of sintered copper alloy powder metal part
In, the unsintered dimensional variation containing copper powder metal press body causes sintered copper alloy powder metal portion
Divide the interference engagement with ferrum class part.This dimensional variation produced by sintering is by sintered copper alloy powder
Metal part is bonded together with ferrum class part, forms composite component.
In some forms of the method, owing to the material of sintered copper alloy powder metal part forms
(that is, pyrite or bronze), in sintering process, from unsintered containing copper powder metal press body to through burn
The dimensional variation of the copper alloy powder metal part of knot relates to the increase of yardstick, causes interference engagement.At sintering
It is the most rare that this yardstick afterwards expands, and as a rule, sintering causes dense powder gold not yet completely
Belong to the densification of press body.But, the sintering response of pyrite and bronze can handle the increasing of green density potentially
Add so that the expansion of part yardstick rather than the dimensions shrink of routine can occur.Non-limiting as one
Example, finds that being pressed into green density is 7.4g/cm3And at the 90Cu-10Sn element powder of 1555 °F of sintering
The pyrite alloy at end shows the yardstick swell increment of 2% after the sintering of about 20 minutes.On the contrary,
By green density (is become about 6.0g/cm to lower-pilot3Green density), can be at the sintering of 20 minutes
Cause the dimensions shrink more than 2% afterwards.Therefore, this non-limitative example shows pyrite and bronze powder
Formula is for the complicated sintering response of sintering, in this case, it is possible to be that yardstick is increased or decreased.
Unsintered to expand containing copper powder metal press body in the case of, it means that can pass through
The unsintered press body containing copper powder metal is put into the open interior in ferrum class part, thus by unsintered
Containing copper powder metal press body and ferrum class part placed adjacent.Then, after the sintering, along with unsintered
The sintering containing copper powder metal press body forms sintered copper alloy powder metal part, unsintered containing copper powder
End stamped metal body can expand, thus sintered copper alloy powder metal part outer perimeter with
Interference engagement is produced between the inner perimeter of ferrum class part.On the other hand, if when carrying out this sintering and described
When part has substantial cylindrical interface, form the process of sintered copper alloy powder metal part at sintering
In, the unsintered circumference containing copper powder metal press body may increase, and this circumference increase can cause
Interlocking or sintering coordinate.
Unsintered to shrink containing copper powder metal press body in the case of, can be by by ferrum class portion
Point put into unsintered containing the open interior in copper powder metal press body, thus by unsintered containing copper powders
Stamped metal body and ferrum class part placed adjacent.Then, after the sintering, along with unsintered containing copper powders
Stamped metal body sintering forms sintered copper alloy powder metal part, unsintered containing copper powder metal pressure
Body processed can shrink, thus in inner perimeter and the ferrum class part of sintered copper alloy powder metal part
Outer perimeter between produce interference engagement.Similarly, on the other hand, if when carrying out this sintering and described
When part has substantial cylindrical interface, form the process of sintered copper alloy powder metal part at sintering
In, the unsintered circumference containing copper powder metal press body may reduce, and this circumference reduces and can cause
Interlocking or sintering coordinate.
Terms used herein " pyrite " and " bronze " are used for representing certain class with the usual manner of its usual title
Copper-bearing alloy.Such as, in pyrite, copper is mainly combined with the zinc as alloy element.In bronze,
One or more in copper and tin, aluminum, silicon and nickel combine.Listed described alloy element is representative
And nonexcludability；It is to say, other alloy elements a small amount of also can be comprised in copper alloy, without
They are excluded pyrite and the classification of bronze.
Ferrum class part can be ferrum, ferroalloy, steel or steel alloy.Ferrum class portion can be manufactured in many ways
Point, include but not limited to, forging and molding, casting and powder metallurgy.It is also contemplated for other non-ferric class supporting constructions
Or backing sinters the potential machinability being coupled in supporting construction as pyrite/bronze assembly.
The composite component that expection is formed can be used for producing bearing, bearing assembly, axle bush etc..Thus, complex group
Part may be characterized as bearing, and sintered copper alloy powder metal part can include bearing surface (that is, its
On placed the surface of another assembly).Owing to bearing is typically ring-type, it is considered to sintered copper alloy
Powdered-metal part and ferrum class part can be all annular.
One coordinated that sinters around steel or steel alloy or the pyrite in steel or steel alloy or bronze shows
Work advantage is, the austenitizing temperature at steel carries out the sintering of pyrite or bronze.Therefore, at sintering step
Period, the temperature being sintered the unsintered press body containing copper powder metal also makes the ferrum class of composite component
There is austenitizing in part.Therefore, method may also include and cools down composite component after the sintering or quench
The step of fire, wherein, it is sufficiently fast that cooling occurs so that at least partly austenite is converted into martensite.System
Make the method for composite component to may also include the martensite in the ferrum class part of composite component is tempered.
In some forms of method, after sintering step, it is considered to method may also include sintered copper
Alloy powder metal part carries out size regulation and/or by the sintered copper alloy powder metal part of oil-impregnated
Step.
According to another aspect of the present invention, it is provided that a kind of composite component, it has sintered copper alloy
Powdered-metal part and ferrum class part.Sintered copper alloy powder metal part has the material of bronze or pyrite
Material composition.Due to unsintered golden to form sintered copper alloy powder containing copper powder metal press body sintering
Belong to during part, the result of the unsintered dimensional variation containing copper powder metal, ferrum class part with through burning
The copper alloy powder metal part of knot is adjacent and occurs friction engagement (and to be likely to be of a certain degree of diffusion
Bonding).
As described above, ferrum class can be partially placed into sintering partial interior, vice versa.In some forms
In, ferrum class part may be located in the opening of sintered copper alloy powder metal part, and sintered
The inner perimeter of copper alloy powder metal part can form interference engagement with the outer perimeter of ferrum class part.At other
In form, sintered copper alloy powder metal part may be located in the opening of ferrum class part, and ferrum class
The inner perimeter of part can form interference engagement with the outer perimeter of sintered copper alloy powder metal part.
Similarly, sintered copper alloy powder metal part can be pyrite or bronze, as described above,
And ferrum class part can be ferrum, ferroalloy, steel or steel alloy.Although use powder metallurgy define through
The copper alloy powder metal part of sintering, but forging and molding can be used, pour or powder metallurgy is formed
Ferrum class part.
Composite component can be bearing, and wherein, sintered copper alloy powder metal part includes bearing surface.
Kind of bearings is typically ring-type, and considers that sintered copper alloy powder metal part and ferrum class part can
Being all annular.Furthermore, it is possible to by the sintered copper alloy powder metal part of oil-impregnated.
These and other advantages of the present invention can be well understood to by described below and accompanying drawing.Below only
Describe the present invention some preferred embodiment.In order to assess the gamut of the present invention, for right
For requirement, these preferred implementations should not regarded as only embodiment in right.
Accompanying drawing explanation
Fig. 1 shows the flow process of the step successively of the method manufacturing composite component according to an aspect of the present invention
Figure.
Fig. 2 A is through ferrum class part and the cross-sectional side view of unsintered powdered-metal press body acquisition,
Wherein, in the internal admission ferrum class part of opening of unsintered powdered-metal press body.
Fig. 2 B is the cross-sectional side view of composite component, described composite component be by Fig. 2 A around ferrum class
The unsintered powdered-metal press body of part is sintered being formed the sintering part of composite component and is formed,
Sintering formed sintering part during, powdered-metal press body around ferrum class part generation dimensions shrink,
Make described part " sintering coordinates " form interference engagement together or betwixt.
Fig. 3 A is through ferrum class part and the cross-sectional side view of unsintered powdered-metal press body acquisition,
Wherein, in the internal admission unsintered powdered-metal press body of opening of ferrum class part.
Fig. 3 B is the cross-sectional side view of composite component, and described composite component is by Fig. 3 A is positioned at ferrum class
In part, unsintered powdered-metal press body is sintered being formed the sintering part of composite component and is formed,
During sintering forms sintering part, powdered-metal press body occurs yardstick to expand in ferrum class part,
Make described part " sintering coordinates " form interference engagement together or betwixt.
Detailed description of the invention
Seeing Fig. 1,2A, 2B, 3A and 3B, display is for producing the method 100 of composite component in FIG,
Composite component 200,300 obtained by such as is the most as shown in figures 2 b and 3b.Each step presently described
Carry out the most successively, thus the macrostructure needed for providing for composite component and micro structure.
In first step 102, the ink metal containing copper powder is suppressed or is compacted, to form unsintered containing
Copper powder metal press body, such as the press body 202 or 302 in Fig. 2 A and 3A.Because this type of suppresses skill
Art is well-known in the art, it will only pressing process is carried out simplicity of explanation.In brief, generally
By the powder ink metal (being generally of a certain amount of binding agent and the lubricant) chamber by feed-shoe entering tool
In room, and die head group is installed in single shaft press.Along with feed-shoe withdraws, upper tool elements and under
Tool elements circulates to the powdered-metal of die head intracavity and applies suppression power, from the loosest powder ink metal
Form press body.The granule through compacting of powder ink stamped metal body is kept together by binding agent and lubricant,
And by promoting lower instrument and/or reducing die head, this press body is ejected from die head.For shown ring
Shape press body, it is also possible to there is the core bar for forming central opening in press body.
It should be understood that these press body 202 are sintered copper alloy powder metal parts 204 and 304
Precursor, they material composition be pyrite or bronze.Therefore, containing copper powder metal comprise copper and (as
Really in the case of pyrite) including at least in zinc or (if in the case of bronze) stannum, aluminum, silicon and nickel
One or more.Consider that copper and alloy element can be the independent element powders mutually carrying out mixing.But
It is, it is also considered that alloy element can be the most pre-alloyed, or the portion as master alloy powder
Point exist together.
In this regard, it is noted that, the character of press body sinters response tool for the yardstick of powdered-metal press body
There is obvious and violent impact.Possibly, in these character, the most significantly green density of press body,
It is the effective density of the just parts of compacting, and it can be by such as changing pressing pressure or the granularity of powder
Distribution changes.Although the behavior of different power formulations and response are probably different, but the most logical
For often observing, bigger green density tends to lead to have after the sintering the just sintering expanding yardstick
Parts, and the press body with relatively low green density shows dimensions shrink the most after the sintering.Some
Then the press body of green density can expand in sintering process shrinks, this depend on sintering lasting time
Between.It can be said that the quantity (and the transmutability observed by industrial equipment different fragments) of given latent variable,
Those skilled in the art may need to refer to document and/or carry out repeatedly initial trial, determine for specific powder
End metal composition obtains one group of parameter needed for accurately sintering response, and gives the chi observed in production run
Condition is regulated by degree change further.
Based on mentioned above, it is assumed that in sintering process, the press body 202 in Fig. 2 A can be shunk and Fig. 3 A
In press body 302 can expand, the green compact character of press body 202 compacting should be able to be during acceleration of sintering
Dimensions shrink, and the green compact character of press body 302 compacting should be able to expand by the yardstick during acceleration of sintering.
Return to the exemplary press body 202 and 302 in Fig. 2 A and 3A, and the given annulate shaft that they will be used for
Holding type structure, these press body 202 and 302 are typically tubular shape, have radially surface 206
With 306 and radial inward surface 208 and 308.
Continuation method 100, at step 104, is then disposed adjacent to ferrum class by press body 202 and 302
Part 210 and 301, the most as shown in figures 2 a and 3.Ferrum class part 210 or 310 can as support or
Backing Member carries out structure support to pyrite or bronze sintering part, and its can be ferrum, ferroalloy, steel,
Steel alloy, or other potential support or back lining materials.Similarly, due to formed be annular bearings group
Part, ferrum class part 210 and 310 has radially surface 212 and 312 and radial inward surface 214
With 314.In the case of figure 2 a, the radial inward surface 208 of press body 202 can be as being used for receiving
The opening of ferrum class part 210, so that the radially surface 212 of ferrum class part 210 is towards press body
The radial inward surface 208 of 202.In the situation of figure 3 a, the radial inward surface 314 of ferrum class part 310
Can be as receiving the opening of press body 302, so that radially surface 306 of press body 302
Radial inward surface 314 towards ferrum class part 310.
In any case, only exist between press body 202 and 302 and ferrum class part 210 and 310
Closely-spaced so that after the dimensional variation of sintering sum percentage point further, press body 202 and 302
Size regulation extremely can interfere with ferrum class part 210 and 310, they are bonded together.Composition can connect
The primary clearance being subject to can depend on expecting in sintering process the dimensional variation amount occurred.
It is noted that in disclosed embodiment, press body 202 and 302 and ferrum class part 210 and 310
It is all tubulose or tubular shape, and they are mutually received with sleeve fashion, so that in two faces
The inner perimeter of one is towards another outer perimeter.It should be understood that, although shown parts be tubulose or
Tubular shape, it is contemplated that for the change of this geometrical morphology.Such as, circumference can be formed on
Surface character (such as tooth bar), it can accurately mate or not mate mating components.Although additionally, display
Ring shaped cross-section, but in some applications, it is considered to this geometrical morphology can be changed.
In any case, for press body 202 or 302 being positioned to and ferrum class part according to step 104
210 or 310 adjacent time, the most in position press body 202 or 302 is sintered, sintered to be formed
Copper alloy powder metal parts 204 or 304, formed respectively as shown in figures 2 b and 3b according to step 106
Composite component 200 or 300.Based on mentioned above it should be understood that press body 202 or 302 occurs
Dimensional variation (expansion between contraction or Fig. 3 A and 3B between Fig. 2 A and 2B), and conduct
The result of this dimensional variation so that sintered powdered-metal part 204 or 304 and corresponding ferrum class part
210 or 310 form interference engagement.In the case of fig. 2b, the footpath of sintered powdered-metal part 204
Radially surface 212 or the periphery of ferrum class part 210 it is retracted to inward faces 216 or inner perimeter
In boundary.This means that the interior diameter of press body 202, inner periphery or inner perimeter are less than sintered powder gold
Belong to the interior diameter of part 204, inner periphery or inner perimeter, show to shrink.In the case of figure 3b, warp
Radially surface 318 or the outer perimeter of the powdered-metal part 304 of sintering expand into ferrum class part 310
Radial inward surface 314 or outer perimeter on.In the case, the overall diameter of press body 302, cylindrical
Week or outer perimeter are more than the sintered overall diameter of powdered-metal part 304, excircle or outer perimeter,
Show that the yardstick in sintering process expands.
This dimensional variation effectively produces " sintering coordinates ", wherein, as the result of sintering, by dry
Relating to cooperation makes powdered-metal part engage with Part II (herein for ferrum class Backing Member).This is by two
Part by prevent them from occurring axially or rotate be mutually shifted in the way of be bonded on together.
It is further noted that the sintering temperature used in step 106 process being sintered press body is also
Can be used for making the ferrum class part 210 or 310 of composite component 200 or 300 according to step 108 at sintering simultaneously
Generation austenitizing (it is shown as dotted line and represents, based on selected material, it may occur however that or not
Occur this to sinter/heat treatment) simultaneously.It is to say, some the ferrite meetings in ferrum class part 210 or 310
It is converted into austenite in the sintering process of pyrite or bronze powder metal.Owing to austenitizing temperature can take
Certainly carbon content and other factors in ferrum class part change, therefore, if austenitizing to be realized
Words, then may most realistic method be to select austenitizing temperature less than specific pyrite or the sintering of bell metal
The ferrum based composition of temperature.
At sintering simultaneously, in the case of there is austenitizing in step 108, for ferrum class part 210 or
310, then after sintering/austenitizing, according to step 110, composite component can be carried out follow-up fast quickly cooling
But step, from least part of austenitic formation martensite, and can be according to the step 112 geneva to being formed
Body is tempered.For specific iron based composition, can be by using TTT (Time-temperature-transformation) table
Document obtain realizing the quenching speed of the step 110 of particular percentile martensite in micro structure.Additionally,
For step 112, in order to reduce brittleness, can be tempered martensite, this can be far below sintering
Carry out at a temperature of temperature so that the pyrite of composite component or bronze part do not occur to burn the most further
Knot.
After sintering step 106 (or, if austenitizing, tempering step 112 it
Afterwards), sintered copper alloy powder metal part 204 or 304 can be regulated to making sintered by size
Copper alloy powder metal part 204 or 304 remaining exposed surface (such as, in Fig. 2 B towards appearance
Face 220 or inward faces 322) it is used as bearing surface.Further contemplate to improve frictional qualities,
Can be with this surface of oil-impregnated, to provide self-lubricating.
Disclosed structures and methods have an advantage that, the composite component of formation provides for pyrite or bronze material
Firm ferrum backing or steel backing, this, compared to simple brass or bronze assembly, adds intensity and modulus.
Additionally, ferrum class component (even in the case of separately carrying out preproduction with powdered-metal) also not with
Substantially deformation occurs under the typical sintering temperature of pyrite and bronze, and therefore ferrum class part provides reduction pyrite
Or bronze part dimension deformation around structure.Another is advantageous in that, can be (by same sinter
Time ferrum class part is carried out heat treatment) provide, for bearing assembly, the hardened artiwear surface that is connected with bearing.This
For all such as relating to some bearing construction of rotating shaft etc or structure are probably favourable.
It should be understood that various other that can make preferred implementation in spirit and scope herein improve and become
Type.Therefore, the present invention should not necessarily be limited by described embodiment.Should be judged this with reference to appended claims
The four corner of invention.
Claims (27)
1. the method forming composite component, described composite component has sintered copper alloy powder metal
Part and ferrum class part, described method includes:
Suppress containing copper powder metal, unsintered containing copper powder metal press body to be formed, described contain
Copper powder metal comprises copper and at least one alloy element；
By described unsintered containing copper powder metal press body and described ferrum class part placed adjacent；And
The described unsintered press body containing copper powder metal is sintered form described sintered copper close
Gold powdered-metal part, wherein, described is described containing at least one alloy element described in copper powder metal
Sintered copper alloy powder metal part provides following material composition, described material composition selected from pyrite and
Bronze；
Thus it is described sintered being sintered the described unsintered press body containing copper powder metal being formed
Copper alloy powder metal part during, described unsintered containing the chi in copper powder metal press body
Degree change causes the interference engagement of described sintered copper alloy powder metal part and described ferrum class part, from
And described sintered copper alloy powder metal part and described ferrum class part are bonded together, to be formed
State composite component.
2. the method for claim 1, it is characterised in that due to described sintered copper alloy powder
Metal part material composition, in sintering process, from described unsintered containing copper powder metal press body to
The dimensional variation of described sintered copper alloy powder metal part relates to the increase of yardstick, thus causes described
Interference engagement.
3. the method for claim 1, it is characterised in that by described unsintered containing copper powder metal
Press body and described ferrum class part placed adjacent include putting the described unsintered press body containing copper powder metal
The inside of the opening in described ferrum class part.
4. method as claimed in claim 3, it is characterised in that after the sintering, along with described un-sintered
The sintering containing copper powder metal press body form described sintered copper alloy powder metal part, described do not burn
The press body containing copper powder metal of knot expands, thus in described sintered copper alloy powder metal part
Outer perimeter and the inner perimeter of described ferrum class part between produce described interference engagement.
5. method as claimed in claim 4, it is characterised in that form described sintered copper at sintering and close
During gold powdered-metal part, the described unsintered circumference containing copper powder metal press body increases.
6. the method for claim 1, it is characterised in that by described unsintered containing copper powder metal
Press body and described ferrum class part placed adjacent include described ferrum class part is placed on described unsintered cupric
The inside of the opening in powdered-metal press body.
7. method as claimed in claim 6, it is characterised in that after the sintering, along with described un-sintered
The sintering containing copper powder metal press body form described sintered copper alloy powder metal part, described do not burn
The press body containing copper powder metal of knot shrinks, thus in described sintered copper alloy powder metal part
Inner perimeter and the outer perimeter of described ferrum class part between produce described interference engagement.
8. method as claimed in claim 7, it is characterised in that form described sintered copper at sintering and close
During gold powdered-metal part, the described unsintered circumference containing copper powder metal press body reduces.
9. the method for claim 1, it is characterised in that at least one alloy element described includes
Zinc, and described sintered copper alloy powder metal part material composition be pyrite.
10. the method for claim 1, it is characterised in that at least one alloy element described
It is selected from: stannum, aluminum, silicon and nickel, and the material composition of described sintered copper alloy powder metal part is
Bronze.
11. the method for claim 1, it is characterised in that described sintered copper alloy powder
Metal part is ring-type, and described ferrum class part is ring-type.
12. the method for claim 1, it is characterised in that described ferrum class part be following at least
A kind of: ferrum, ferroalloy, steel and steel alloy.
13. the method for claim 1, described method also include use forging and molding, casting or
Powder metallurgy manufactures the step of described ferrum class part.
14. the method for claim 1, it is characterised in that described composite component is bearing, and
And described sintered copper alloy powder metal part includes bearing surface.
15. the method for claim 1, it is characterised in that during described sintering step, right
The temperature that the described unsintered press body containing copper powder metal is sintered also makes the ferrum of described composite component
Class part generation austenitizing, and wherein, described method be additionally included in sintering after to described composite component
Carrying out the step cooled down, wherein, described cooling is sufficiently fast, thus be enough to change at least part of austenite
For martensite.
16. methods as claimed in claim 15, described method also includes the ferrum class to described composite component
Described martensite in part carries out the step being tempered.
17. the method for claim 1, described method also includes described sintered copper alloy
Powdered-metal part carries out size regulation and impregnates described sintered copper alloy powder metal portion with oil
The step divided.
18. 1 kinds of composite component, comprising:
Sintered copper alloy powder metal part, its material composition is selected from pyrite and bronze；And
Ferrum class part, sinters to form described sintered copper containing copper powder metal press body due to unsintered
During alloy powder metal part, the result of the described unsintered dimensional variation containing copper powder metal,
Described ferrum class part is adjacent with described sintered copper alloy powder metal part and forms interference engagement.
19. composite component as claimed in claim 18, it is characterised in that described ferrum class part is positioned at institute
State in the opening of sintered copper alloy powder metal part, and described sintered copper alloy powder metal
The inner perimeter of part forms interference engagement with the outer perimeter of described ferrum class part.
20. composite component as claimed in claim 18, it is characterised in that described sintered copper alloy
Powdered-metal part is positioned at the opening of described ferrum class part, and the inner perimeter of described ferrum class part is with described
The outer perimeter of sintered copper alloy powder metal part forms interference engagement.
21. composite component as claimed in claim 18, it is characterised in that described sintered copper alloy
Powdered-metal part is pyrite, and it comprises zinc as alloy element.
22. composite component as claimed in claim 18, it is characterised in that described sintered copper alloy
Powdered-metal part is bronze, and it comprises one or more in stannum, aluminum, silicon and nickel as alloying
Element.
23. composite component as claimed in claim 18, it is characterised in that described ferrum class part is following
At least one: ferrum, ferroalloy, steel and steel alloy.
24. composite component as claimed in claim 18, it is characterised in that use forging and molding, casting
Or powder metallurgy forms described ferrum class part.
25. composite component as claimed in claim 18, it is characterised in that described sintered copper alloy
Powdered-metal part is ring-type, and described ferrum class part is ring-type.
26. composite component as claimed in claim 18, it is characterised in that described composite component is bearing,
And described sintered copper alloy powder metal part includes bearing surface.
27. composite component as claimed in claim 18, it is characterised in that described sintered copper alloy
Powdered-metal part oil-impregnated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201561129144P | 2015-03-06 | 2015-03-06 | |
| US61/129,144 | 2015-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105935775A true CN105935775A (en) | 2016-09-14 |
Family
ID=57151275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610124269.XA Pending CN105935775A (en) | 2015-03-06 | 2016-03-04 | Method adopting sintering for associating production of composite assembly containing brass or bronze |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105935775A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604609A (en) * | 2018-11-20 | 2019-04-12 | 广州市光铭金属制品有限责任公司 | A kind of duplicate gear product assembling sintering process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1141959A (en) * | 1995-08-01 | 1997-02-05 | 陈刚 | Technology of split pressing one-time compounding for composite iron-base alloy of powdered metallurgy of tin and bronze |
| CN1141961A (en) * | 1995-08-01 | 1997-02-05 | 苗毅 | Complex technology of integrate forming and sintering composite iron-base alloy of powdered metallurgy of tin and bronze |
| CN101670439A (en) * | 2008-09-12 | 2010-03-17 | 罗伯特.博世有限公司 | Method for producing a workpiece from composite material and workpiece made of composite material |
| CN101699084A (en) * | 2009-11-20 | 2010-04-28 | 浙江中达轴承有限公司 | Bimetal sliding bearing with sealing function and preparation method thereof |
| CN101829785A (en) * | 2010-05-26 | 2010-09-15 | 四川大学 | Sintering diffusion method for preparing iron-based surface composite material |
| US20130156626A1 (en) * | 2011-12-20 | 2013-06-20 | Rolls-Royce Deutschland Ltd & Co Kg | Method for manufacturing a part by metal injection moulding |
-
2016
- 2016-03-04 CN CN201610124269.XA patent/CN105935775A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1141959A (en) * | 1995-08-01 | 1997-02-05 | 陈刚 | Technology of split pressing one-time compounding for composite iron-base alloy of powdered metallurgy of tin and bronze |
| CN1141961A (en) * | 1995-08-01 | 1997-02-05 | 苗毅 | Complex technology of integrate forming and sintering composite iron-base alloy of powdered metallurgy of tin and bronze |
| CN101670439A (en) * | 2008-09-12 | 2010-03-17 | 罗伯特.博世有限公司 | Method for producing a workpiece from composite material and workpiece made of composite material |
| CN101699084A (en) * | 2009-11-20 | 2010-04-28 | 浙江中达轴承有限公司 | Bimetal sliding bearing with sealing function and preparation method thereof |
| CN101829785A (en) * | 2010-05-26 | 2010-09-15 | 四川大学 | Sintering diffusion method for preparing iron-based surface composite material |
| US20130156626A1 (en) * | 2011-12-20 | 2013-06-20 | Rolls-Royce Deutschland Ltd & Co Kg | Method for manufacturing a part by metal injection moulding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604609A (en) * | 2018-11-20 | 2019-04-12 | 广州市光铭金属制品有限责任公司 | A kind of duplicate gear product assembling sintering process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Narasimhan | Sintering of powder mixtures and the growth of ferrous powder metallurgy | |
| US9637811B2 (en) | Iron-based sintered sliding member and production method therefor | |
| US8287615B2 (en) | High-strength composition iron powder and sintered part made therefrom | |
| US10150162B2 (en) | Iron-based sintered alloy for sliding member and production method therefor | |
| JP6688287B2 (en) | Pre-alloyed iron-based powder, iron-based powder mixture containing pre-alloyed iron-based powder, and method of manufacturing press-formed and sintered parts from the iron-based powder mixture | |
| CN105051226B (en) | Sliding bearing | |
| CN104246251B (en) | Sliding member and method for manufacturing sliding member | |
| JP2008540982A (en) | Particularly, a rolling bearing race for a high-load rolling bearing in an aircraft power transmission device and a manufacturing method thereof | |
| CN104046926A (en) | Iron Based Sintered Sliding Member And Method For Producing Same | |
| DE102011122626A1 (en) | Piston of an internal combustion engine, manufacturing method of the piston and sliding element | |
| US20090129964A1 (en) | Method of forming powder metal components having surface densification | |
| EP3203098B1 (en) | Slide member and method for manufacturing same | |
| JP2017066491A (en) | Powder for powder metallurgy, green compact and method for producing sintered component | |
| US11883883B2 (en) | Process for manufacturing toroid parts | |
| US11105369B2 (en) | Method of producing composite component having brass or bronze using sinter fit | |
| JP4201830B2 (en) | Iron-based powder containing chromium, molybdenum and manganese and method for producing sintered body | |
| CN105935775A (en) | Method adopting sintering for associating production of composite assembly containing brass or bronze | |
| US11097346B1 (en) | Process for manufacturing toroid parts | |
| JP6528899B2 (en) | Method of manufacturing mixed powder and sintered body for powder metallurgy | |
| US9404535B2 (en) | Sliding bearing assembly | |
| CN101187398A (en) | Bearing spacer ring made from powder metallurgical material | |
| JP6550224B2 (en) | Sliding member and method of manufacturing the same | |
| JPS6164838A (en) | High density copper sintered alloy | |
| Kandavel et al. | Experimental Investigations on Plastic Deformation and Densification Characteristics of P/M Fe–C–Cu–Mo Alloy Steels Under Cold Upsetting | |
| JP2017101331A (en) | Iron-based sintered slide member and production method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160914 |
|
| RJ01 | Rejection of invention patent application after publication |