CN104438885A - High-precision bending die manufacturing method - Google Patents
High-precision bending die manufacturing method Download PDFInfo
- Publication number
- CN104438885A CN104438885A CN201410490950.7A CN201410490950A CN104438885A CN 104438885 A CN104438885 A CN 104438885A CN 201410490950 A CN201410490950 A CN 201410490950A CN 104438885 A CN104438885 A CN 104438885A
- Authority
- CN
- China
- Prior art keywords
- bending die
- rough forging
- processed
- manufacture method
- machining
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
Abstract
The invention discloses a high-precision bending die manufacturing method and belongs to the technical field of die machining. The machining process comprises the steps of (1) preparation of bending die materials, (2) annealing treatment of forging blanks, (3) preliminary machining of the forging blanks, (4) one-off forming machining, (5) heat treatment, (6) secondary forming machining and (7) assembling. The method solves the problems that machined parts are low in precision, materials are wasted, and the production efficiency is low due to the fact that an existing bending die is low in precision, and has the advantages that the method is simple, the cost is low and machining is easy.
Description
Technical field
The invention belongs to mold machining technology field, more particularly, relate to a kind of manufacture method of the high accuracy punch die for machining shape complexity.
Background technology
Punch process utilizes the mould be arranged on forcing press, applies pressure, make plate produce distortion in mould to the plate in mould, thus obtain the production technology of the product parts of definite shape, size and performance.And in the process of punch process, diel is special technological equipment Sheet Metal Processing being become punching parts.When punch process, usually need the geomery needed for bar, materials in the tube, shape bending being become, its diel used is bending die.When utilizing bending die to process some complex-shaped parts, due to complex-shaped, high requirement is proposed for its size and morpheme, and more existing bending dies are usually because its manufacture method limit, the element precision of processing can not reach requirement, cause waste of material, and cause production efficiency low.
Summary of the invention
The part to be processed precision caused because of lack accuracy for existing bending die is low, waste of material and the low problem of production efficiency, the invention provides a kind of high accuracy bending die manufacture method, it is by the Technology for Heating Processing reasonably becoming to be grouped into and this composition is corresponding, the precision of mould is improved, add the precision of part to be processed, save material, improve production efficiency.
For solving the problem, the present invention adopts following technical scheme.
A kind of high accuracy bending die manufacture method, comprises the following steps:
(1) preparation of bending die material:
Bending die adopts rough forging to obtain, and the mass percent of this rough forging component is: C:0.9-1.05%, Cr:0.90-1.20%, W:1.20-1.60%, Mn:0.80-1.10%, and surplus is Fe;
(2) annealing in process of rough forging:
Annealed to it by the annealed stove of rough forging through step (1), its annealing temperature is 580-640 DEG C, and annealing time is 5-7 hour, is chilled to 460-520 DEG C of laggard line space in the lehr cold;
(3) preliminary working of rough forging:
On lathe, preparatory processing circular port axle, planer or milling machine process rectangular surfaces;
(4) once-forming processing:
Lathe is processed circular port axle, machining shape profile or the pre-hole of nibs on milling machine;
(5) heat treatment:
The bending die will processed through step (4), was heated to 800-830 DEG C in 35 minutes, and be incubated after 50 minutes and quench, oil quenching, then carries out tempering at 190-210 DEG C of temperature, tempering three times;
(6) secondary forming processing:
Grinding machine of universal is processed circular port axle, profile processed by form grinder, coordinate mill or some machining tool process nibs or profile;
(7) assemble:
Pincers worker fine finishining, assembling, adjustment.
Preferably, in described step (1), the mass percent of bending die rough forging component is: C:1.00%, Cr:1.10%, W:1.35%, Mn:0.90%, and surplus is Fe.
Preferably, in described step (2), rough forging annealing temperature is 590 DEG C, and annealing time is 6 hours, is chilled to 500 DEG C of laggard line spaces in the lehr cold.
Preferably, in described step (5), quenching adopts mould special quenching oil.
Compared to prior art, beneficial effect of the present invention is:
(1) the present invention is by the reasonable disposition to material composition, and adopt low hardening heat and temperature, the die hardness obtained can reach 62HRC, its precision is greatly enhanced, add the precision of part to be processed, save material, improve production efficiency.
(2) the inventive method is simple, and cost is low, handling ease.
Detailed description of the invention
Describe the present invention below in conjunction with embodiment.
embodiment 1
A kind of high accuracy bending die manufacture method, comprises the following steps:
(1) preparation of bending die material:
Bending die adopts rough forging to obtain, and the mass percent of this rough forging component is: C:1.00%, Cr:1.10%, W:1.35%, Mn:0.90%, and surplus is Fe;
(2) annealing in process of rough forging:
Annealed to it by the annealed stove of rough forging through step (1), its annealing temperature is 590 DEG C, and annealing time is 6 hours, is chilled to 500 DEG C of laggard line spaces in the lehr cold;
(3) preliminary working of rough forging:
On lathe, preparatory processing circular port axle, planer or milling machine process rectangular surfaces;
(4) once-forming processing:
Lathe is processed circular port axle, machining shape profile or the pre-hole of nibs on milling machine;
(5) heat treatment:
The bending die will processed through step (4), was heated to 810 DEG C in 35 minutes, was incubated after 50 minutes and quenched, and adopted mould special quenching oil to carry out oil quenching, then at 200 DEG C of temperature, carried out tempering, tempering three times;
(6) secondary forming processing:
Grinding machine of universal is processed circular port axle, profile processed by form grinder, coordinate mill or some machining tool process nibs or profile;
(7) assemble:
Pincers worker fine finishining, assembling, adjustment.
Claims (4)
1. a high accuracy bending die manufacture method, is characterized in that following steps:
(1) preparation of bending die material:
Bending die adopts rough forging to obtain, and the mass percent of this rough forging component is: C:0.9-1.05%, Cr:0.90-1.20%, W:1.20-1.60%, Mn:0.80-1.10%, and surplus is Fe;
(2) annealing in process of rough forging:
Annealed to it by the annealed stove of rough forging through step (1), its annealing temperature is 580-640 DEG C, and annealing time is 5-7 hour, is chilled to 460-520 DEG C of laggard line space in the lehr cold;
(3) preliminary working of rough forging:
On lathe, preparatory processing circular port axle, planer or milling machine process rectangular surfaces;
(4) once-forming processing:
Lathe is processed circular port axle, machining shape profile or the pre-hole of nibs on milling machine;
(5) heat treatment:
The bending die will processed through step (4), was heated to 800-830 DEG C in 35 minutes, and be incubated after 50 minutes and quench, oil quenching, then carries out tempering at 190-210 DEG C of temperature, tempering three times;
(6) secondary forming processing:
Grinding machine of universal is processed circular port axle, profile processed by form grinder, coordinate mill or some machining tool process nibs or profile;
(7) assemble:
Pincers worker fine finishining, assembling, adjustment.
2. a kind of high accuracy bending die manufacture method according to claim 1, it is characterized in that, in described step (1), the mass percent of bending die rough forging component is: C:1.00%, Cr:1.10%, W:1.35%, Mn:0.90%, and surplus is Fe.
3. a kind of high accuracy bending die manufacture method according to claim 1, is characterized in that, in described step (2), rough forging annealing temperature is 590 DEG C, and annealing time is 6 hours, is chilled to 500 DEG C of laggard line spaces in the lehr cold.
4. a kind of high accuracy bending die manufacture method according to claim 1, is characterized in that, in described step (5), quenching adopts mould special quenching oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490950.7A CN104438885A (en) | 2014-09-24 | 2014-09-24 | High-precision bending die manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490950.7A CN104438885A (en) | 2014-09-24 | 2014-09-24 | High-precision bending die manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104438885A true CN104438885A (en) | 2015-03-25 |
Family
ID=52886076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410490950.7A Pending CN104438885A (en) | 2014-09-24 | 2014-09-24 | High-precision bending die manufacturing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN104438885A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945523A (en) * | 2016-06-14 | 2016-09-21 | 沈阳飞机工业（集团）有限公司 | Machining method for thermal drawing die with complex profiles |
| CN106424384A (en) * | 2016-09-23 | 2017-02-22 | 安徽成飞集成瑞鹄汽车模具有限公司 | Manufacturing method for square part inserts |
| CN107584257A (en) * | 2017-10-26 | 2018-01-16 | 苏州创新达成塑胶模具有限公司 | A kind of manufacture method of high-precision mold |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011177755A (en) * | 2010-03-01 | 2011-09-15 | Honda Motor Co Ltd | Forming method by forging and forming mold for forging |
| CN103567729A (en) * | 2012-08-05 | 2014-02-12 | 韦光东 | Hub extrusion die casting manufacturing process |
-
2014
- 2014-09-24 CN CN201410490950.7A patent/CN104438885A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011177755A (en) * | 2010-03-01 | 2011-09-15 | Honda Motor Co Ltd | Forming method by forging and forming mold for forging |
| CN103567729A (en) * | 2012-08-05 | 2014-02-12 | 韦光东 | Hub extrusion die casting manufacturing process |
Non-Patent Citations (3)
| Title |
|---|
| 崔忠圻: "《金属学与热处理》", 30 October 1994 * |
| 洪惠良 等: "《冷冲模技术实训》", 30 June 2009 * |
| 陈文华: "复合热处理对CrWMn钢组织的影响", 《金属热处理》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945523A (en) * | 2016-06-14 | 2016-09-21 | 沈阳飞机工业（集团）有限公司 | Machining method for thermal drawing die with complex profiles |
| CN105945523B (en) * | 2016-06-14 | 2018-08-21 | 沈阳飞机工业（集团）有限公司 | The hot-stretch mould processing method of complex profile |
| CN106424384A (en) * | 2016-09-23 | 2017-02-22 | 安徽成飞集成瑞鹄汽车模具有限公司 | Manufacturing method for square part inserts |
| CN106424384B (en) * | 2016-09-23 | 2019-02-12 | 安徽成飞集成瑞鹄汽车模具有限公司 | The production method of spare part insert |
| CN107584257A (en) * | 2017-10-26 | 2018-01-16 | 苏州创新达成塑胶模具有限公司 | A kind of manufacture method of high-precision mold |
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Application publication date: 20150325 |