CN104564923A - T-shaped flange and manufacturing method thereof - Google Patents
T-shaped flange and manufacturing method thereof Download PDFInfo
- Publication number
- CN104564923A CN104564923A CN201410856481.6A CN201410856481A CN104564923A CN 104564923 A CN104564923 A CN 104564923A CN 201410856481 A CN201410856481 A CN 201410856481A CN 104564923 A CN104564923 A CN 104564923A
- Authority
- CN
- China
- Prior art keywords
- bar
- pressing
- blank
- flange
- forging
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 238000005242 forging Methods 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 210000000481 breast Anatomy 0.000 claims description 4
- 239000005068 cooling lubricant Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000007514 turning Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract 1
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910002535 CuZn Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Forging (AREA)
Abstract
The invention discloses a T-shaped flange and a manufacturing method thereof. The method comprises the following steps: acquiring dimension data of product forging and pressing blanks according to the dimension data of the T-shaped flange; manufacturing a thermal forging and pressing mould, wherein the thermal forging and pressing mould comprises a punch set and a die holder; a cover-shaped cavity is formed on the punch set and a rod-shaped cavity is formed on the die holder; selecting rod materials and cutting the rod materials into rods with preset length; forging and pressing formed blanks and transferring the heated rods into the thermal forging and pressing mould to be forged and pressed; finishing the manufacturing of the product forging and pressing blanks; turning the product forging and pressing blanks and finishing the manufacturing of the T-shaped finished products. The rod-shaped cavity of the thermal forging and pressing mould is set with a taper angle of 5-6 degrees from bottom to top; meanwhile, the rods are heated and then forged and pressed in the thermal forging and pressing mould; guide taper parts are formed only by turning the rods; therefore, the required quantity of the raw materials of the product forging and pressing blanks is reduced effectively and the large-scale production is facilitated.
Description
Technical field
The present invention relates to communication cabinet attaching parts, especially relate to a kind of T-flange and manufacture method thereof.
Background technology
Flange generally uses now as a kind of jockey in the communications industry, but want to produce the high flange of intensity, often a large amount of raw materials and the energy will be wasted in prior art, add the production cost of enterprise, simultaneously because the application of flange is more and more wider, some field requires that flange not only wants high temperature resistant also low temperature resistant, and present flange often can not meet the requirement of people.
Summary of the invention
Based on this, be necessary for the deficiencies in the prior art, its manufacture method of a kind of T-flange is provided, under the loss not increasing original input and the energy, improve the manufacture efficiency of flange, reduce and manufacture the accuracy standard that institute provides board, realize production in enormous quantities.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of T-flange, it connecting rod comprising block and be connected with block, described block upper end offers cavity volume, described connecting rod is provided with arc sections with block joint, and described arc sections radius is 1.2 ~ 1.5mm.
Wherein in an embodiment, described connecting rod bottom to upper end becomes 5 ~ 6 ° of cone angles to arrange.
Wherein in an embodiment, described connecting rod is brass material structure.
A manufacture method for T-flange, it comprises the steps:
Product forging and stamping blank dimension data are obtained according to T-flange sized data, wherein, the blank bar that described product forging and stamping blank comprises blank lid and is connected with blank lid;
Make thermal forge-pressing-forming mould, described thermal forge-pressing-forming mould is provided with upper bolster and die shoe, described upper bolster offers cap-type chamber, described die shoe offers cap-type chamber described in rod-type chamber for accommodating blank lid, and described rod-type chamber is used for accommodating blank bar;
Select bar raw material, bar raw material is cut into the bar of preset length, machining of bar one end is formed guiding tapering portion;
Forging forming blank, is heated to 700 ~ 730 DEG C by bar, and by thermal forge-pressing-forming mould and die preheating to 400 ~ 500 DEG C, is moved in thermal forge-pressing-forming mould by the bar after heating and forge and press;
The upper bolster of adjustment thermal forge-pressing-forming mould and the spacing of die shoe complete the manufacture of product forging and stamping blank;
Product forging and stamping blank is machined, completes the manufacturing process to T-flange finished product.
Wherein in an embodiment, the path length of the fineness ratio block of described blank lid has more 0.5 ~ 0.65mm, and the path length of the bottom fineness ratio connecting rod of described blank bar has more 0.5 ~ 0.65mm.
Wherein in an embodiment, described bar is heated to the temperature duration maintenance 30 ~ 40s of 700 ~ 730 DEG C.
Wherein in an embodiment, the mode of heating of described bar adopts intermediate-frequency heating furnace or gas furnace to carry out bar.
Wherein in an embodiment, the bar after heating is moved in thermal forge-pressing-forming mould the step carrying out forging and pressing and also comprises: graphite spraying breast cooling-lubricant in the cap-type chamber and rod-type chamber of thermal forge-pressing-forming mould.
Wherein in an embodiment, described rod-type chamber becomes 5 ~ 6 ° of cone angles to arrange from the bottom to top.
In sum, T-flange of the present invention and manufacture method thereof are by being arranged to 5 ~ 6 ° of cone angles from the bottom to top by the rod-type chamber of thermal forge-pressing-forming mould, insert thermal forge-pressing-forming mould in after bar being heated simultaneously and forge and press, only need machine bar and form guiding tapering portion, effectively reduce the material quantity of product forging and stamping needed for blank, raw material about 50% can be saved drop into, reduce Vehicle Processing man-hour about 30% simultaneously, be conducive to producing in enormous quantities.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of T-flange of the present invention;
Fig. 2 is the schematic flow sheet of the manufacture method of T-flange of the present invention.
Detailed description of the invention
For feature of the present invention, technological means and the specific purposes reached, function can be understood further, below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail.
As shown in Figure 1, the connecting rod 20 that T-flange of the present invention comprises block 10 and is connected with block 10, described block 10 upper end offers cavity volume 11.
Wherein in an embodiment, described connecting rod 20 is provided with arc sections 21 with block 10 joints, described arc sections 21 radius is 1.2 ~ 1.5mm, makes the forming process of product more easy so that facilitate metal flow to be shifted in forming process of the present invention.
Wherein in an embodiment, described connecting rod 20 bottom to upper end becomes 5 ~ 6 ° of cone angles to arrange, so that described connecting rod 20 facilitates depanning after forging forming, simultaneously, the size increased on the basis of bottom size due to the size of connecting rod 20 upper end is little, compares saving material.
Wherein in an embodiment, described connecting rod 20 is brass (CuZn
39pb
3) material structure.
According to the invention described above T-flange, the invention provides a kind of manufacture method of T-flange, under the loss not increasing original input and the energy, improve the manufacture efficiency of flange, reduce the accuracy standard manufacturing required board, to realize the production in enormous quantities of product.
As shown in Figure 2, the manufacture method of T-flange of the present invention, comprises the steps:
(1) product forging and stamping blank dimension data are obtained according to T-flange sized data, wherein, product forging and stamping blank dimension has more the allowance of 0.5 ~ 0.65mm compared to T-flange size, so that carry out subsequent treatment to product forging and stamping blank, make product forging and stamping blank after treatment closer to the size of T-flange finished product.
Particularly, the blank bar that described product forging and stamping blank comprises blank lid and is connected with blank lid, the path length of the fineness ratio block 10 of described blank lid has more 0.5 ~ 0.65mm, and the path length of the bottom fineness ratio connecting rod 20 of described blank bar has more 0.5 ~ 0.65mm.
Wherein in an embodiment, described blank bar bottom to upper end becomes 5 ~ 6 ° of cone angles to arrange, so that described blank bar facilitates depanning after forging forming, simultaneously, the size increased on the basis of bottom size due to the size of blank bar upper end is little, compares saving material.
(2) make thermal forge-pressing-forming mould, described thermal forge-pressing-forming mould is provided with upper bolster and die shoe, and the surface roughness Ra of described upper bolster and die shoe is less than 0.8; Described upper bolster offers cap-type chamber, described die shoe offers rod-type chamber, described cap-type chamber is in order to accommodating blank lid, and described rod-type chamber is in order to accommodating blank bar; The draft angle in described cap-type chamber is set to 1 ~ 1.5 °, forges and presses blank and takes out in cap-type chamber, be more conducive to the production efficiency promoting forging forming product to facilitate product.
Wherein in an embodiment, described rod-type chamber becomes 5 ~ 6 ° of cone angles to arrange, so that described blank bar facilitates depanning after forging forming from the bottom to top.
(3) select bar raw material, bar raw material is cut into the bar of preset length, described bar volume is 1.2 times of product rough forging volume; Wherein, described bar raw material can be copper rod;
By bar one end machine formed guiding tapering portion, the little 0.5mm of cross section fineness ratio blank bar one end section path length of the bar one end after Vehicle Processing, make the bar after Vehicle Processing easier in the rod-type chamber of thermal forge-pressing-forming mould vertical orientation.
(4) forging forming blank: bar is heated to 700 ~ 730 DEG C by intermediate-frequency heating furnace or gas furnace, be preferably 720 DEG C, and keep bar temp 30 ~ 40s, wherein, adopt intermediate-frequency heating furnace or gas furnace to carry out heating to bar and can reduce Surface of Rod Bar oxidation, reduce bar loss.
By thermal forge-pressing-forming mould and die preheating to 400 ~ 500 DEG C before forging and stamping are produced, to graphite spraying breast cooling-lubricant in the cap-type chamber of thermal forge-pressing-forming mould and rod-type chamber in forging and stamping production process, the bar of heating is moved in thermal forge-pressing-forming mould and forges and presses, only need machine bar and form guiding tapering portion, effectively reduce the material quantity of product forging and stamping needed for blank; Reduce Vehicle Processing man-hour about 30% simultaneously, be conducive to producing in enormous quantities; And graphite spraying breast cooling-lubricant is conducive to cooling thermal forge-pressing-forming mould, increases the lubricant effect of thermal forge-pressing-forming mould simultaneously.
(5) spacing of the upper bolster and die shoe that adjust thermal forge-pressing-forming mould completes the manufacture of product forging and stamping blank.
(6) surface and oil contaminant of cleaning products forging and stamping blank.
(7) turning is carried out to product forging and stamping blank, product is forged and pressed the metal overlap removing that blank end face is unnecessary.
(8) product forging and stamping blank is machined, complete the manufacturing process to T-flange finished product.
In sum, T-flange of the present invention and manufacture method thereof are by being arranged to 5 ~ 6 ° of cone angles from the bottom to top by the rod-type chamber of thermal forge-pressing-forming mould, insert thermal forge-pressing-forming mould in after bar being heated simultaneously and forge and press, only need machine bar and form guiding tapering portion, effectively reduce the material quantity of product forging and stamping needed for blank, raw material about 50% can be saved drop into, reduce Vehicle Processing man-hour about 30% simultaneously, be conducive to producing in enormous quantities.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as limitation of the scope of the invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with claims.
Claims (9)
1. a T-flange, is characterized in that: the connecting rod comprising block and be connected with block, and described block upper end offers cavity volume, and described connecting rod is provided with arc sections with block joint, and described arc sections radius is 1.2 ~ 1.5mm.
2. T-flange according to claim 1, is characterized in that: described connecting rod bottom to upper end becomes 5 ~ 6 ° of cone angles to arrange.
3. T-flange according to claim 1, is characterized in that: described connecting rod is brass material structure.
4. a manufacture method for the T-flange as described in any one of claims 1 to 3, is characterized in that, comprises the steps:
Product forging and stamping blank dimension data are obtained according to T-flange sized data, wherein, the blank bar that described product forging and stamping blank comprises blank lid and is connected with blank lid;
Make thermal forge-pressing-forming mould, described thermal forge-pressing-forming mould is provided with upper bolster and die shoe, described upper bolster offers cap-type chamber, described die shoe offers rod-type chamber, and described cap-type chamber is used for accommodating blank lid, and described rod-type chamber is used for accommodating blank bar;
Select bar raw material, bar raw material is cut into the bar of preset length, machining of bar one end is formed guiding tapering portion;
Forging forming blank, is heated to 700 ~ 730 DEG C by bar, and by thermal forge-pressing-forming mould and die preheating to 400 ~ 500 DEG C, is moved in thermal forge-pressing-forming mould by the bar after heating and forge and press;
The upper bolster of adjustment thermal forge-pressing-forming mould and the spacing of die shoe complete the manufacture of product forging and stamping blank;
Product forging and stamping blank is machined, completes the manufacturing process to T-flange finished product.
5. a manufacture method for T-flange as claimed in claim 4, is characterized in that: the path length of the fineness ratio block of described blank lid has more 0.5 ~ 0.65mm, and the path length of the bottom fineness ratio connecting rod of described blank bar has more 0.5 ~ 0.65mm.
6. a manufacture method for T-flange as claimed in claim 4, is characterized in that: described bar is heated to the temperature duration maintenance 30 ~ 40s of 700 ~ 730 DEG C.
7. a manufacture method for T-flange as claimed in claim 4, is characterized in that: the mode of heating of described bar adopts intermediate-frequency heating furnace or gas furnace to carry out bar.
8. the manufacture method of a T-flange as claimed in claim 4, it is characterized in that, the bar after heating is moved in thermal forge-pressing-forming mould the step carrying out forging and pressing and also comprises: graphite spraying breast cooling-lubricant in the cap-type chamber and rod-type chamber of thermal forge-pressing-forming mould.
9. a manufacture method for T-flange as claimed in claim 4, is characterized in that: described rod-type chamber becomes 5 ~ 6 ° of cone angles to arrange from the bottom to top.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410856481.6A CN104564923A (en) | 2014-12-31 | 2014-12-31 | T-shaped flange and manufacturing method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410856481.6A CN104564923A (en) | 2014-12-31 | 2014-12-31 | T-shaped flange and manufacturing method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN104564923A true CN104564923A (en) | 2015-04-29 |
Family
ID=53081763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410856481.6A Pending CN104564923A (en) | 2014-12-31 | 2014-12-31 | T-shaped flange and manufacturing method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104564923A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105414442A (en) * | 2015-12-11 | 2016-03-23 | 陕西宏远航空锻造有限责任公司 | Forging method for titanium alloy hollow T-shaped shaft forged pieces |
CN106345952A (en) * | 2016-08-26 | 2017-01-25 | 中国商用飞机有限责任公司 | Manufacturing method and manufacturing tool for T-shaped forge piece |
CN106914568A (en) * | 2015-12-25 | 2017-07-04 | 鸿富锦精密电子(成都)有限公司 | Flange stud and its manufacture method |
CN106964947A (en) * | 2017-06-06 | 2017-07-21 | 王天然 | A kind of manufacture method of novel key |
CN108054704A (en) * | 2017-12-22 | 2018-05-18 | 江苏华强电气设备有限公司 | A kind of copper pipe isolated bus connecting clip and its production technology |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101811170A (en) * | 2010-03-30 | 2010-08-25 | 曹立新 | Method for vertically forging integral automobile steering knuckle |
CN101850399A (en) * | 2010-05-14 | 2010-10-06 | 付仕忠 | Process method for forging brake cam of automobile |
KR101017257B1 (en) * | 2008-12-30 | 2011-02-28 | 주식회사 성우하이텍 | Module cylinder in self-piercing rivet system |
CN102319850A (en) * | 2011-08-04 | 2012-01-18 | 南京迪威尔重型锻造股份有限公司 | Method for manufacturing large-scale flange forged piece by utilizing combined tyre die |
CN102806291A (en) * | 2012-08-24 | 2012-12-05 | 江苏凌飞锻造有限公司 | Wind-powered main shaft forging method |
CN202752519U (en) * | 2012-06-11 | 2013-02-27 | 盐城理研精密锻造有限公司 | Cold forging die for cutting tooth forged piece |
CN104048126A (en) * | 2014-06-17 | 2014-09-17 | 德清恒丰机械有限公司 | Flange forge piece |
-
2014
- 2014-12-31 CN CN201410856481.6A patent/CN104564923A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101017257B1 (en) * | 2008-12-30 | 2011-02-28 | 주식회사 성우하이텍 | Module cylinder in self-piercing rivet system |
CN101811170A (en) * | 2010-03-30 | 2010-08-25 | 曹立新 | Method for vertically forging integral automobile steering knuckle |
CN101850399A (en) * | 2010-05-14 | 2010-10-06 | 付仕忠 | Process method for forging brake cam of automobile |
CN102319850A (en) * | 2011-08-04 | 2012-01-18 | 南京迪威尔重型锻造股份有限公司 | Method for manufacturing large-scale flange forged piece by utilizing combined tyre die |
CN202752519U (en) * | 2012-06-11 | 2013-02-27 | 盐城理研精密锻造有限公司 | Cold forging die for cutting tooth forged piece |
CN102806291A (en) * | 2012-08-24 | 2012-12-05 | 江苏凌飞锻造有限公司 | Wind-powered main shaft forging method |
CN104048126A (en) * | 2014-06-17 | 2014-09-17 | 德清恒丰机械有限公司 | Flange forge piece |
Non-Patent Citations (2)
Title |
---|
机械电子工业部科技司: "《机械工业 基础工艺成果及应用文集(一)》", 31 December 1992 * |
李志广: "法兰轴类锻件顶锻拔模斜度的设计", 《锻压机械》 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105414442A (en) * | 2015-12-11 | 2016-03-23 | 陕西宏远航空锻造有限责任公司 | Forging method for titanium alloy hollow T-shaped shaft forged pieces |
CN106914568A (en) * | 2015-12-25 | 2017-07-04 | 鸿富锦精密电子(成都)有限公司 | Flange stud and its manufacture method |
CN106914568B (en) * | 2015-12-25 | 2019-02-26 | 鸿富锦精密电子(成都)有限公司 | Flange stud and its manufacturing method |
CN106345952A (en) * | 2016-08-26 | 2017-01-25 | 中国商用飞机有限责任公司 | Manufacturing method and manufacturing tool for T-shaped forge piece |
CN106964947A (en) * | 2017-06-06 | 2017-07-21 | 王天然 | A kind of manufacture method of novel key |
CN108054704A (en) * | 2017-12-22 | 2018-05-18 | 江苏华强电气设备有限公司 | A kind of copper pipe isolated bus connecting clip and its production technology |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104564923A (en) | T-shaped flange and manufacturing method thereof | |
CN103706743A (en) | Die-forging forming process of titanium-alloy forged drum piece | |
CN102527897A (en) | Forging method for thin-walled step short sleeve type main shaft flange of water turbine | |
CN101590589B (en) | Method for producing transmission part | |
CN105583351A (en) | Horizontal forging technology for middle-sized spline shaft yoke | |
CN102228947A (en) | Finish rolling forming technique of numerical control ring rolling machine of internal long neck special-shaped wind power flange | |
CN110125314A (en) | A kind of forging method of high-carbon-chromium bearing steel forging stock | |
CN104307912B (en) | A kind of variable conduit extrusion rolling building mortion and manufacturing process thereof | |
CN104139147A (en) | Forging method of SB564 UNS N06690 alloy large-scale internal T-shaped annular forge piece blank | |
CN107443019A (en) | The warm cold duplex forging manufacturing process of deep hole input shaft | |
CN103121075A (en) | Hot forging method for transmission shaft yoke with horizontal yoke part | |
CN103567247A (en) | Novel warm extrusion method for efficiently processing internal-tooth cylindrical gears | |
CN203265502U (en) | Hot forging device for transmission shaft joint fork with horizontal fork part | |
CN104841792A (en) | Molding process of reverse cylinder workpiece having flange at end | |
CN114985671A (en) | Forging method of medium and large bearing ring | |
CN102989989B (en) | Forging process of heavy truck steering knuckle | |
CN112338114A (en) | Forming process of inner hole inclined ring piece | |
CN101862949A (en) | Backward extrusion forging method | |
CN104384877A (en) | Processing process of rear axle circular cone driven gear | |
CN103878195A (en) | Magnesium alloy plate extrusion forming method | |
CN106378632A (en) | Precise forming mechanism of oil pump oil mouth plunger sleeve | |
CN203578514U (en) | Cone workpiece blanking die | |
CN203578540U (en) | Pipe clamp blanking and punching composite die | |
CN1872448A (en) | Method for manufacturing oil pipe in external upset | |
CN103341736A (en) | Large standard screw drilling rig centralizer hot extrusion molding technology |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |