CN106040954A - Forging technology of small motor shaft - Google Patents

Forging technology of small motor shaft Download PDF

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Publication number
CN106040954A
CN106040954A CN201610453622.9A CN201610453622A CN106040954A CN 106040954 A CN106040954 A CN 106040954A CN 201610453622 A CN201610453622 A CN 201610453622A CN 106040954 A CN106040954 A CN 106040954A
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China
Prior art keywords
forging
temperature
carries out
heating
flat anvil
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CN201610453622.9A
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CN106040954B (en
Inventor
吕美莲
刘春超
冯宝倪
吕俊
吕诚
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Auspicious Outstanding Co Ltd Of Forging Of Anhui Province
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Auspicious Outstanding Co Ltd Of Forging Of Anhui Province
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Publication of CN106040954A publication Critical patent/CN106040954A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/06—Making machine elements axles or shafts
    • B21K1/10—Making machine elements axles or shafts of cylindrical form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K29/00—Arrangements for heating or cooling during processing

Abstract

The invention discloses a forging technology of a small motor shaft, and belongs to the technical field of small motor shaft processing. The forging technology consists of the steps as follows: (1) a blank is selected and put in a furnace for primary heating, then primary heat preservation is carried out, and the blank is subjected to extrusion upsetting; (2) a forged piece is subjected to secondary heating, then secondary heat preservation treatment is carried out, and the forged piece is subjected to preliminary drawing-out; (3) the forged piece is subjected to tertiary heating, then tertiary heat preservation treatment is carried out, and the forged piece is subjected to drawing-out; (4) the forged piece is subjected to quaternary heating, then quaternary heat preservation treatment is carried out, and the forged piece is subjected to drawing-out to form small steps; and (5) the forged piece is slowly and uniformly cooled, and then the forged piece is tempered immediately. With the adoption of the forging technology, the small motor shaft forged piece is low in allowance; no decentration happens between the steps of the small motor shaft forged piece; and the adjustment is simple during the machining of the small motor shaft forged piece.

Description

A kind of Forging Technology of apparatus for small electric machine shaft
Technical field
The invention belongs to apparatus for small electric machine shaft processing technique field, particularly relate to the Forging Technology of a kind of apparatus for small electric machine shaft.
Background technology
Micro-machine forged shaft is in forging process, and microcephaly expects that less not directly fertilizer forges.Common forging method The micro-machine forging shaft surplus processed is big, the most eccentric between step and step, and correction difficulty during machining.
Summary of the invention
The technical problem to be solved is to provide the Forging Technology of a kind of apparatus for small electric machine shaft.
For solving the problems referred to above, the Forging Technology of a kind of apparatus for small electric machine shaft of the present invention, this technique is by following step Rapid composition:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1160～1260 DEG C, so After be once incubated, holding temperature is 1160～1260 DEG C, and temperature retention time is 2.3～2.8 hours, then places the blanks on down On flat anvil, carry out extruding jumping-up with flat anvil；
(2) forging carrying out post bake, post bake temperature is 700～900 DEG C, then carries out secondary isothermal holding, Secondary holding temperature is 700～900 DEG C, and secondary temperature retention time is 1.6～1.9 hours, is then placed on by forging on lower flat anvil, will Forging tentatively pulls out；
(3) forging carries out three heating, and three times heating-up temperature is 1150～1250 DEG C, then carries out at three insulations Reason, three times holding temperature is 1150～1250 DEG C, and secondary temperature retention time is 1.8～2.2 hours, and then forging is placed on lower flat anvil On, forging is pulled out again；
(4) forging carries out four heating, and four times heating-up temperature is 750～850 DEG C, then carries out four isothermal holding, Four times holding temperature is 750～850 DEG C, and four times temperature retention time is 1.1～1.4 hours, is then placed on by forging on lower flat anvil, forging Part pulling small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
Compared with prior art, the invention have the advantages that the micro-machine forging shaft surplus of the present invention is little；The present invention Micro-machine forging shaft step and step between will not be eccentric；Correction letter when the micro-machine forging shaft of the present invention machines Single.
Detailed description of the invention
Embodiment 1
A kind of Forging Technology of apparatus for small electric machine shaft, this technique is to comprise the steps of:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1160 DEG C, then carries out Once being incubated, holding temperature is 1160 DEG C, and temperature retention time is 2.3 hours, then places the blanks on lower flat anvil, enters with flat anvil Row extruding jumping-up；
(2) forging carrying out post bake, post bake temperature is 700 DEG C, then carries out secondary isothermal holding, and secondary is protected Temperature temperature is 700 DEG C, and secondary temperature retention time is 1.6 hours, is then placed on lower flat anvil by forging, is tentatively pulled out by forging Long；
(3) forging carries out three heating, and three times heating-up temperature is 1150 DEG C, then carries out three isothermal holding, three times Holding temperature is 1150 DEG C, and secondary temperature retention time is 1.8 hours, is then placed on by forging on lower flat anvil, is carried out again by forging Pulling；
(4) forging carries out four heating, and four times heating-up temperature is 750 DEG C, then carries out four isothermal holding, protects for four times Temperature temperature is 750 DEG C, and four times temperature retention time is 1.1 hours, is then placed on by forging on lower flat anvil, forging pulling small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
It is demonstrated experimentally that micro-machine forging shaft surplus is little under this parameter；Between micro-machine forging shaft step and step not Can bias；During the machining of micro-machine forging shaft, correction is simpler.
Embodiment 2
A kind of Forging Technology of apparatus for small electric machine shaft, this technique is to comprise the steps of:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1190 DEG C, then carries out Once being incubated, holding temperature is 1190 DEG C, and temperature retention time is 2.5 hours, then places the blanks on lower flat anvil, enters with flat anvil Row extruding jumping-up；
(2) forging carrying out post bake, post bake temperature is 750 DEG C, then carries out secondary isothermal holding, and secondary is protected Temperature temperature is 750 DEG C, and secondary temperature retention time is 1.7 hours, is then placed on lower flat anvil by forging, is tentatively pulled out by forging Long；
(3) forging carries out three heating, and three times heating-up temperature is 1175 DEG C, then carries out three isothermal holding, three times Holding temperature is 1175 DEG C, and secondary temperature retention time is 1.9 hours, is then placed on by forging on lower flat anvil, is carried out again by forging Pulling；
(4) forging carries out four heating, and four times heating-up temperature is 775 DEG C, then carries out four isothermal holding, protects for four times Temperature temperature is 775 DEG C, and four times temperature retention time is 1.2 hours, is then placed on by forging on lower flat anvil, forging pulling small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
It is demonstrated experimentally that micro-machine forging shaft surplus is less under this parameter；Between micro-machine forging shaft step and step Will not be eccentric；During the machining of micro-machine forging shaft, correction is simpler.
Embodiment 3
A kind of Forging Technology of apparatus for small electric machine shaft, this technique is to comprise the steps of:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1120 DEG C, then carries out Once being incubated, holding temperature is 1120 DEG C, and temperature retention time is 2.5 hours, then places the blanks on lower flat anvil, enters with flat anvil Row extruding jumping-up；
(2) forging carrying out post bake, post bake temperature is 800 DEG C, then carries out secondary isothermal holding, and secondary is protected Temperature temperature is 800 DEG C, and secondary temperature retention time is 1.8 hours, is then placed on lower flat anvil by forging, is tentatively pulled out by forging Long；
(3) forging carries out three heating, and three times heating-up temperature is 1200 DEG C, then carries out three isothermal holding, three times Holding temperature is 1200 DEG C, and secondary temperature retention time is 2 hours, is then placed on lower flat anvil by forging, is again pulled out by forging Long；
(4) forging carries out four heating, and four times heating-up temperature is 805 DEG C, then carries out four isothermal holding, protects for four times Temperature temperature is 805 DEG C, and four times temperature retention time is 1.3 hours, is then placed on by forging on lower flat anvil, forging pulling small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
It is demonstrated experimentally that micro-machine forging shaft surplus is minimum under this parameter；Between micro-machine forging shaft step and step Will not be eccentric；During the machining of micro-machine forging shaft, correction is simpler.
Therefore, the present embodiment is preferred embodiment.
Embodiment 4
A kind of Forging Technology of apparatus for small electric machine shaft, this technique is to comprise the steps of:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1230 DEG C, then carries out Once being incubated, holding temperature is 1230 DEG C, and temperature retention time is 2.7 hours, then places the blanks on lower flat anvil, enters with flat anvil Row extruding jumping-up；
(2) forging carrying out post bake, post bake temperature is 850 DEG C, then carries out secondary isothermal holding, and secondary is protected Temperature temperature is 850 DEG C, and secondary temperature retention time is 1.8 hours, is then placed on lower flat anvil by forging, is tentatively pulled out by forging Long；
(3) forging carries out three heating, and three times heating-up temperature is 1225 DEG C, then carries out three isothermal holding, three times Holding temperature is 1225 DEG C, and secondary temperature retention time is 2.1 hours, is then placed on by forging on lower flat anvil, is carried out again by forging Pulling；
(4) forging carries out four heating, and four times heating-up temperature is 825 DEG C, then carries out four isothermal holding, protects for four times Temperature temperature is 825 DEG C, and four times temperature retention time is 1.3 hours, is then placed on by forging on lower flat anvil, forging pulling small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
It is demonstrated experimentally that micro-machine forging shaft surplus is less under this parameter；Between micro-machine forging shaft step and step Will not be eccentric；During the machining of micro-machine forging shaft, correction is simpler.
Embodiment 5
A kind of Forging Technology of apparatus for small electric machine shaft, this technique is to comprise the steps of:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1260 DEG C, then carries out Once being incubated, holding temperature is 1260 DEG C, and temperature retention time is 2.8 hours, then places the blanks on lower flat anvil, enters with flat anvil Row extruding jumping-up；
(2) forging carrying out post bake, post bake temperature is 900 DEG C, then carries out secondary isothermal holding, and secondary is protected Temperature temperature is 900 DEG C, and secondary temperature retention time is 1.9 hours, is then placed on lower flat anvil by forging, is tentatively pulled out by forging Long；
(3) forging carries out three heating, and three times heating-up temperature is 1250 DEG C, then carries out three isothermal holding, three times Holding temperature is 1250 DEG C, and secondary temperature retention time is 2.2 hours, is then placed on by forging on lower flat anvil, is carried out again by forging Pulling；
(4) forging carries out four heating, and four times heating-up temperature is 850 DEG C, then carries out four isothermal holding, protects for four times Temperature temperature is 850 DEG C, and four times temperature retention time is 1.4 hours, is then placed on by forging on lower flat anvil, forging pulling small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
It is demonstrated experimentally that micro-machine forging shaft surplus is little under this parameter；Between micro-machine forging shaft step and step not Can bias；During the machining of micro-machine forging shaft, correction is simple.

Claims (6)

1. the Forging Technology of an apparatus for small electric machine shaft, it is characterised in that: this technique is to comprise the steps of:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1160～1260 DEG C, then enters Row is once incubated, and holding temperature is 1160～1260 DEG C, and temperature retention time is 2.3～2.8 hours, then places the blanks on lower flat anvil On, carry out extruding jumping-up with flat anvil；
(2) forging carrying out post bake, post bake temperature is 700～900 DEG C, then carries out secondary isothermal holding, secondary Holding temperature is 700～900 DEG C, and secondary temperature retention time is 1.6～1.9 hours, is then placed on by forging on lower flat anvil, by forging Tentatively pull out；
(3) forging carries out three heating, and three times heating-up temperature is 1150～1250 DEG C, then carries out three isothermal holding, three Secondary holding temperature is 1150～1250 DEG C, and secondary temperature retention time is 1.8～2.2 hours, is then placed on by forging on lower flat anvil, will Forging pulls out again；
(4) forging carries out four heating, and four times heating-up temperature is 750～850 DEG C, then carries out four isothermal holding, four times Holding temperature is 750～850 DEG C, and four times temperature retention time is 1.1～1.4 hours, is then placed on lower flat anvil by forging, and forging pulls out Long small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
A kind of Forging Technology of apparatus for small electric machine shaft, it is characterised in that: this technique is by following steps Composition:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1160 DEG C, then carries out once Insulation, holding temperature is 1160 DEG C, and temperature retention time is 2.3 hours, then places the blanks on lower flat anvil, squeezes with flat anvil Pressure jumping-up；
(2) forging carrying out post bake, post bake temperature is 700 DEG C, then carries out secondary isothermal holding, secondary insulation temperature Degree is 700 DEG C, and secondary temperature retention time is 1.6 hours, is then placed on lower flat anvil by forging, is tentatively pulled out by forging；
(3) forging carries out three heating, and three times heating-up temperature is 1150 DEG C, then carries out three isothermal holding, three insulations Temperature is 1150 DEG C, and secondary temperature retention time is 1.8 hours, is then placed on lower flat anvil by forging, is again pulled out by forging；
(4) forging carries out four heating, and four times heating-up temperature is 750 DEG C, then carries out four isothermal holding, four insulation temperature Degree is 750 DEG C, and four times temperature retention time is 1.1 hours, is then placed on by forging on lower flat anvil, forging pulling small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
A kind of Forging Technology of apparatus for small electric machine shaft, it is characterised in that: this technique is by following steps Composition:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1190 DEG C, then carries out once Insulation, holding temperature is 1190 DEG C, and temperature retention time is 2.5 hours, then places the blanks on lower flat anvil, squeezes with flat anvil Pressure jumping-up；
(2) forging carrying out post bake, post bake temperature is 750 DEG C, then carries out secondary isothermal holding, secondary insulation temperature Degree is 750 DEG C, and secondary temperature retention time is 1.7 hours, is then placed on lower flat anvil by forging, is tentatively pulled out by forging；
(3) forging carries out three heating, and three times heating-up temperature is 1175 DEG C, then carries out three isothermal holding, three insulations Temperature is 1175 DEG C, and secondary temperature retention time is 1.9 hours, is then placed on lower flat anvil by forging, is again pulled out by forging；
(4) forging carries out four heating, and four times heating-up temperature is 775 DEG C, then carries out four isothermal holding, four insulation temperature Degree is 775 DEG C, and four times temperature retention time is 1.2 hours, is then placed on by forging on lower flat anvil, forging pulling small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
A kind of Forging Technology of apparatus for small electric machine shaft, it is characterised in that: this technique is by following steps Composition:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1120 DEG C, then carries out once Insulation, holding temperature is 1120 DEG C, and temperature retention time is 2.5 hours, then places the blanks on lower flat anvil, squeezes with flat anvil Pressure jumping-up；
(2) forging carrying out post bake, post bake temperature is 800 DEG C, then carries out secondary isothermal holding, secondary insulation temperature Degree is 800 DEG C, and secondary temperature retention time is 1.8 hours, is then placed on lower flat anvil by forging, is tentatively pulled out by forging；
(3) forging carries out three heating, and three times heating-up temperature is 1200 DEG C, then carries out three isothermal holding, three insulations Temperature is 1200 DEG C, and secondary temperature retention time is 2 hours, is then placed on lower flat anvil by forging, is again pulled out by forging；
(4) forging carries out four heating, and four times heating-up temperature is 805 DEG C, then carries out four isothermal holding, four insulation temperature Degree is 805 DEG C, and four times temperature retention time is 1.3 hours, is then placed on by forging on lower flat anvil, forging pulling small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
A kind of Forging Technology of apparatus for small electric machine shaft, it is characterised in that: this technique is by following steps Composition:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1230 DEG C, then carries out once Insulation, holding temperature is 1230 DEG C, and temperature retention time is 2.7 hours, then places the blanks on lower flat anvil, squeezes with flat anvil Pressure jumping-up；
(2) forging carrying out post bake, post bake temperature is 850 DEG C, then carries out secondary isothermal holding, secondary insulation temperature Degree is 850 DEG C, and secondary temperature retention time is 1.8 hours, is then placed on lower flat anvil by forging, is tentatively pulled out by forging；
(3) forging carries out three heating, and three times heating-up temperature is 1225 DEG C, then carries out three isothermal holding, three insulations Temperature is 1225 DEG C, and secondary temperature retention time is 2.1 hours, is then placed on lower flat anvil by forging, is again pulled out by forging；
(4) forging carries out four heating, and four times heating-up temperature is 825 DEG C, then carries out four isothermal holding, four insulation temperature Degree is 825 DEG C, and four times temperature retention time is 1.3 hours, is then placed on by forging on lower flat anvil, forging pulling small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
A kind of Forging Technology of apparatus for small electric machine shaft, it is characterised in that: this technique is by following steps Composition:
(1) selecting blank, blank is put into stove and once heats, one time heating-up temperature is 1260 DEG C, then carries out once Insulation, holding temperature is 1260 DEG C, and temperature retention time is 2.8 hours, then places the blanks on lower flat anvil, squeezes with flat anvil Pressure jumping-up；
(2) forging carrying out post bake, post bake temperature is 900 DEG C, then carries out secondary isothermal holding, secondary insulation temperature Degree is 900 DEG C, and secondary temperature retention time is 1.9 hours, is then placed on lower flat anvil by forging, is tentatively pulled out by forging；
(3) forging carries out three heating, and three times heating-up temperature is 1250 DEG C, then carries out three isothermal holding, three insulations Temperature is 1250 DEG C, and secondary temperature retention time is 2.2 hours, is then placed on lower flat anvil by forging, is again pulled out by forging；
(4) forging carries out four heating, and four times heating-up temperature is 850 DEG C, then carries out four isothermal holding, four insulation temperature Degree is 850 DEG C, and four times temperature retention time is 1.4 hours, is then placed on by forging on lower flat anvil, forging pulling small stair；
(5) forging is carried out the most uniform cooling, and be tempered immediately, eliminate residualinternal stress, crystal grain thinning.
CN201610453622.9A 2016-06-20 2016-06-20 A kind of forging technology of apparatus for small electric machine shaft Active CN106040954B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107952923A (en) * 2017-11-21 2018-04-24 烟台市台海集团有限公司 A kind of manufacturing process of six segmentations axis class rotor
CN110315017A (en) * 2019-07-08 2019-10-11 浙江鸿景特钢制造有限公司 The forging technology of metal forging

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Publication number Priority date Publication date Assignee Title
CN101134224A (en) * 2006-08-29 2008-03-05 中信重型机械公司 Large-scale roller press squeeze roll forging technique
KR20100077393A (en) * 2008-12-29 2010-07-08 주식회사 보은금속 Manufacturing method of the worm-shaft for mdps
CN101979179A (en) * 2010-09-16 2011-02-23 江苏金源锻造股份有限公司 Method for forging thin and short shaft section at end of large-scale step shaft
CN102527912A (en) * 2010-12-29 2012-07-04 中原特钢股份有限公司 Process utilizing upper flat and lower V-shaped anvil to forge stepped shafts
KR20130000829A (en) * 2011-06-24 2013-01-03 이기순 The manufacturing method of the high strength processed goods using the cold forging method
CN103492099A (en) * 2011-04-25 2014-01-01 日立金属株式会社 Fabrication method for stepped forged material
KR20140036742A (en) * 2012-09-18 2014-03-26 (주)영완 Output rod of booster for vehicle and the method therof
CN103894792A (en) * 2014-02-26 2014-07-02 陕西华威锻压有限公司 Method for machining forge piece of large-scale single-flange anti-explosion motor main shaft of all-fiber texture
JP2015042413A (en) * 2013-08-26 2015-03-05 株式会社神戸製鋼所 Forging method of hollow shaft forging

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101134224A (en) * 2006-08-29 2008-03-05 中信重型机械公司 Large-scale roller press squeeze roll forging technique
KR20100077393A (en) * 2008-12-29 2010-07-08 주식회사 보은금속 Manufacturing method of the worm-shaft for mdps
CN101979179A (en) * 2010-09-16 2011-02-23 江苏金源锻造股份有限公司 Method for forging thin and short shaft section at end of large-scale step shaft
CN102527912A (en) * 2010-12-29 2012-07-04 中原特钢股份有限公司 Process utilizing upper flat and lower V-shaped anvil to forge stepped shafts
CN103492099A (en) * 2011-04-25 2014-01-01 日立金属株式会社 Fabrication method for stepped forged material
KR20130000829A (en) * 2011-06-24 2013-01-03 이기순 The manufacturing method of the high strength processed goods using the cold forging method
KR20140036742A (en) * 2012-09-18 2014-03-26 (주)영완 Output rod of booster for vehicle and the method therof
JP2015042413A (en) * 2013-08-26 2015-03-05 株式会社神戸製鋼所 Forging method of hollow shaft forging
CN103894792A (en) * 2014-02-26 2014-07-02 陕西华威锻压有限公司 Method for machining forge piece of large-scale single-flange anti-explosion motor main shaft of all-fiber texture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107952923A (en) * 2017-11-21 2018-04-24 烟台市台海集团有限公司 A kind of manufacturing process of six segmentations axis class rotor
CN107952923B (en) * 2017-11-21 2019-02-12 烟台市台海集团有限公司 A kind of manufacturing process of six segmentations axis class rotor
CN110315017A (en) * 2019-07-08 2019-10-11 浙江鸿景特钢制造有限公司 The forging technology of metal forging

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