CN104148888A - Process for cold extrusion forming of one-way device spline sleeve - Google Patents

Process for cold extrusion forming of one-way device spline sleeve Download PDF

Info

Publication number
CN104148888A
CN104148888A CN201410304849.8A CN201410304849A CN104148888A CN 104148888 A CN104148888 A CN 104148888A CN 201410304849 A CN201410304849 A CN 201410304849A CN 104148888 A CN104148888 A CN 104148888A
Authority
CN
China
Prior art keywords
cold
spline
tube
splined sleeve
phosphatization
Prior art date
Application number
CN201410304849.8A
Other languages
Chinese (zh)
Other versions
CN104148888B (en
Inventor
周国忠
Original Assignee
宁波惠山汽配制造有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 宁波惠山汽配制造有限公司 filed Critical 宁波惠山汽配制造有限公司
Priority to CN201410304849.8A priority Critical patent/CN104148888B/en
Publication of CN104148888A publication Critical patent/CN104148888A/en
Application granted granted Critical
Publication of CN104148888B publication Critical patent/CN104148888B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/02Making uncoated products

Abstract

The invention provides a process for cold extrusion forming of a one-way device spline sleeve. The process comprises the steps of utilizing hollow pipes to serve as raw materials, performing blanking according to specified dimensions, sequentially performing annealing, head flattening, shot blasting, phosphatization and saponification treatment, cold extrusion shaping, cold extrusion spline forming, machining, quenching, tempering, shot blasting, cleaning and grinding machine processing, and obtaining finished product one-way device spline sleeves. The one-way device spline sleeves obtained through the process are high in precision, small in individual differences, good in strength performance and long in service lives.

Description

The cold extruding formation process of isolator splined sleeve
Technical field
The present invention relates to parts processing technique field, be specifically related to a kind of cold extruding formation process of isolator splined sleeve.
Background technology
Isolator splined sleeve is the important spare part of automobile engine, and its basic structure is pipe, and wherein the inner surface in pipe one side is provided with spline.The processing method of existing isolator splined sleeve mostly is machine-tooled method, and not only environmental pollution is serious, production cost is high, production efficiency is low and spline service life of obtaining is low, precision is also lower for it.So, also have the technique of using cold-extrusion technology to process this workpiece at present.
Notification number is the processing method that the Chinese invention patent of CN102501036B discloses a kind of gears for one-way clutches, its processing technology is: the 20cr structural alloy steel bar of take is raw material, carry out successively annealing in process, phospholeum processing, boring endoporus, annealing in process, phospholeumization processing, extruding profile of tooth, shaping, wherein shaping comprises the process for machining such as boring, tack, chamfering, bore hole, turning, cylindrical grinding.This technique is aspect the intensity of workpiece, precision, precision and intensity that special profile of tooth forms, really than existing machine-tooled method, have largely and improve, but also there are many problems: (1) is used 20cr structural alloy steel bar is raw material, still cause many waste of material, production cost is corresponding raising also; (2) adopt the method for boring endoporus to form endoporus, not only production efficiency is low, low precision, and between individuality, deviation is large, the large workpiece of deviation carries out gear forming with mould again between to these individualities, not only be difficult to guarantee size, the precision of end product, and the loss to mould is large, production cost improves; (3) annealing in process can make the surface of workpiece form layer of oxide layer, after annealing, directly carry out phospholeum processing, the effect of phosphatization can be poor, and phosphate layer uneven thickness and the integral body of formation are thinner, can affect Density Distribution and the whole homogeneity of finished product; (4) twice annealing is processed and phospholeum processes that not only technique is loaded down with trivial details, also the corresponding production cost that improved.
Summary of the invention
Technical problem to be solved by this invention is for above the deficiencies in the prior art, and a kind of cold extruding formation process of isolator splined sleeve is provided, and this technique obtains that isolator splined sleeve precision is high, interindividual variation is little, and strength character is good, long service life.
The technical solution adopted in the present invention is:
A kind of cold extruding formation process of isolator splined sleeve, this technique comprises the following steps: take hollow pipe as raw material, according to the rules after size blanking, anneal successively, tack, ball blast, phospholeum processing, cold-extruded shaping, the moulding of cold-extruded spline, machined, quenching, tempering, ball blast, cleaning, grinding machine processing, obtain finished product isolator splined sleeve.
Described annealing is carried out in industry quenching resistance furnace, and annealing temperature is 750-800 ℃, and annealing time is 6~7h.
Described ball blast refers to cast steel ball and carries out shotblasting processing, and the ball blast time is 5~6min.
Described phospholeumization is processed and is comprised that phosphatization is processed and saponification is processed, and wherein phosphatization is processed and comprised the following steps:
A1: by the clear water rinsing twice for hollow materials in the tube after shotblasting is processed, to remove hollow pipe surface dirt;
A2: the hollow materials in the tube of removing after dust are removed to surface and oil contaminant with the spirit of deoiling of 80~90 ℃;
A3: the hot water rinsing twice by the hollow materials in the tube after wipe oil with 70~80 ℃, the spirit of deoiling of removing remained on surface;
A4: the hollow materials in the tube after step a3 processes are immersed in Phosphating Solution and carry out phosphatization processing, Phosphating Solution comprises each component of following percentage by weight: zinc oxide 15-20%, zinc dihydrogen phosphate 20-25%, nitric acid 15-25%, citric acid 6-10%, nickelous sulfate 1-3%, sodium molybdate 1-3%, surplus are water, phosphatization treatment conditions are: full acidity (TA) 40-60Pt, free acidity (FA) 7-10Pt, acid ratio=TA/FA6-8, promoter (AC value) 1-3Pt, phosphatization temperature is 70~80 ℃, and phosphating time is 10-15min;
A5: the hollow materials in the tube after phosphatization is processed are filtered to 20~40s with normal temperature clear water, remove the Phosphating Solution of remained on surface;
A6: by 70~80 ℃ of hot-water soak 40~60s for the hollow materials in the tube after clear water filters, improve the temperature of workpiece.
A7: the workpiece through hot water heating is immersed in saponification liquor and carries out saponification processing, the hydrotrope that the composition of saponification liquor is odium stearate, the quality proportioning of odium stearate and water is 1 ︰ 8,70~80 ℃ of solution temperatures, soak time 40~60s.
Described cold-extruded shaping is carried out being equipped with on the high-speed cold extrusion forming machine of shaping mould, hollow materials in the tube after phospholeumization is processed are put into the die of shaping mould immediately, by shaping mould plug be pressed into die, the hollow materials in the tube of drift forward extrusion for impulse force by hydraulic press with 300 tons, form the sleeve blank with bigger diameter end and miner diameter end.
Described cold-extruded spline is molded over to be equipped with on the high-speed cold extrusion forming machine that squeezes spline mould and carries out, the miner diameter end of sleeve blank is put into the die that squeezes spline mould downwards, by hydraulic press, with the impulse force of 300 tons, drive the spline shaping mould (plug) of crowded spline mould, forward extrusion forms spline in the curved surface chamber of bigger diameter end, makes isolator splined sleeve blank.
Described quenching refers in multipurpose furnace to be carried out, and treatment temperature is 850-880 ℃, and the time is 6 hours.The temperature and time outbalance of this step, for making material hardens, gains in strength, and increases service life.
Described tempering is carried out in industrial tempering furnace, and temperature is 200 ℃, and the time is 1.5 hours.This step is a post processing to quenching, and after this step, the fatigue resistance of material, toughness, wearability will improve greatly.
Compared with prior art, the present invention has following remarkable advantage and beneficial effect:
(1) the present invention adopts hollow tube as the raw material of isolator splined sleeve processing, adopt compared to existing technology solid bar to make raw-material processing technology, this technique has been saved the step of boring/bore hole and has only been needed annealing in process and phospholeumization is processed and can be met process requirements, not only save processing cost, saved raw material, simplified processing technology, and what is more important, quality is better than controlling, and the hole of having avoided solid bar boring/bore hole to be prone to is inclined to one side, the unequal problem of size;
(2) after hollow pipe blanking of the present invention, first carry out tack, the index of tack technique is that each hollow materials in the tube quality equates, the i.e. quality conformance between early stage strict guarantee individuality first, by hollow materials in the tube identical in quality, directly carry out shaping, squeeze spline, and the middle step on the mass formation impact of material such as bore hole of not carrying out, like this through die reshaping, the sleeve blank obtaining after crowded spline is first in shape, in size, uniformity is very high, sample room deviation is little, precision is high, and sleeve blank internal soundness is evenly distributed, sample room consistent in density is high, differences between batches are little,
(3) after annealing in process, first carry out ball blast, remove hollow materials in the tube surface oxide layer, then carry out phospholeum, can greatly improve the effect of phosphatization, the phosphate layer even thickness of formation, surface smoothing, in conjunction with fine and close, difficult drop-off;
(4) the present invention adopts Phosphating Solution and impregnation process method thereof, have serviceability temperature low (70~80 ℃), phosphating time short (10~15min), feature that sediment is few, after phosphatization is processed, makes metal surface generate the heavy 8-10g/m of a skim 2lithoform, rete is fine and close, evenly, without dust, by this Phosphating Solution, processed the overlay film that obtains to the having good stability of lubricant, cold working is especially most suitable as lubricated bottom overlay film during cold-heading;
(5) quenching and tempering also play a key effect in the present invention, by synergy between the two, have greatly improved intensity, toughness, the tensile resistance degree of material, increase service life.
Accompanying drawing explanation
Shown in Fig. 1 is the cutaway view of raw material hollow pipe of the present invention;
Shown in Fig. 2 is the cutaway view of the sleeve blank that obtains after shaping of the present invention;
Shown in Fig. 3 is the cutaway view of the isolator splined sleeve blank that obtains after spline moulding of the present invention.
The specific embodiment
Below in conjunction with embodiment, the present invention is further described in detail.Be noted that following illustrating is all exemplary, be intended to the invention provides further instruction.Except as otherwise noted, all Science and Technology terms that the present invention uses have the identical meanings of conventionally understanding with the technical field of the invention personnel.
The cold extruding formation process of the present embodiment ND series isolator splined sleeve comprises the following steps: the 20CrMo hollow pipe (as shown in Figure 1) of take is raw material, after the blanking of specification (referring generally to length) sawing machine, anneal successively, tack, ball blast, phospholeum processing, cold-extruded shaping, the moulding of cold-extruded spline, machined, quenching, tempering, ball blast, cleaning, grinding machine processing, obtain finished product isolator splined sleeve.
Described annealing is carried out in industry quenching resistance furnace, and annealing temperature is 750-800 ℃, and annealing time is 6~7h.This annealing temperature is slightly lower than prior art, is on the one hand that hollow tube is relevant with raw material of the present invention, is also for reducing costs consideration on the other hand, through this treatment process of overtesting can meet user demand.
Described tack routinely technique carries out, but is noted that the operative norm of tack is the quality conformance between strict guarantee individuality.
Described ball blast refers to cast steel ball and carries out shotblasting processing, and the ball blast time is 5~6min.This step has effectively been removed the oxide layer that annealing steps produces on hollow tube surface, makes follow-up phosphatization treatment effect good.
Described phospholeumization is processed and is comprised that phosphatization is processed and saponification is processed, and wherein phosphatization is processed and comprised the following steps:
A1: by the clear water rinsing twice for hollow materials in the tube after shotblasting is processed, to remove hollow pipe surface dirt;
A2: the hollow materials in the tube of removing after dust are removed to surface and oil contaminant with the spirit of deoiling of 80~90 ℃;
A3: the hot water rinsing twice by the hollow materials in the tube after wipe oil with 70~80 ℃, the spirit of deoiling of removing remained on surface;
A4: the hollow materials in the tube after step a3 processes are immersed in Phosphating Solution and carry out phosphatization processing, Phosphating Solution comprises each component of following percentage by weight: zinc oxide 15-20%, zinc dihydrogen phosphate 20-25%, nitric acid 15-25%, citric acid 6-10%, nickelous sulfate 1-3%, sodium molybdate 1-3%, surplus are water, phosphatization treatment conditions are: full acidity (TA) 40-60Pt, free acidity (FA) 7-10Pt, acid ratio=TA/FA6-8, promoter (AC value) 1-3Pt, phosphatization temperature is 70~80 ℃, and phosphating time is 10-15min;
A5: the hollow materials in the tube after phosphatization is processed are filtered to 20~40s with normal temperature clear water, remove the Phosphating Solution of remained on surface;
A6: by 70~80 ℃ of hot-water soak 40~60s for the hollow materials in the tube after clear water filters, improve the temperature of workpiece.
A7: the workpiece through hot water heating is immersed in saponification liquor and carries out saponification processing, the hydrotrope that the composition of saponification liquor is odium stearate, the quality proportioning of odium stearate and water is 1 ︰ 8,70~80 ℃ of solution temperatures, soak time 40~60s.
Select above-mentioned Phosphating Solution can suitably reduce parkerized temperature and time, 10~15min can complete phosphatization and processes at 70~80 ℃, and the lithoform rete obtaining is fine and close, evenly, thickness is moderate, at 8-10g/m 2, play the lubrication arriving very much, as for too thick, to workpiece, increase burden again.
Described cold-extruded shaping is carried out being equipped with on the high-speed cold extrusion forming machine of shaping mould, hollow materials in the tube after phospholeumization is processed are put into the die of shaping mould immediately, by shaping mould plug be pressed into die, the hollow materials in the tube of drift forward extrusion for impulse force by hydraulic press with 300 tons, formation has the sleeve blank of bigger diameter end and miner diameter end, as shown in Figure 2.The object of this step is to make the appearance and size of stock unified.
Described cold-extruded spline is molded over to be equipped with on the high-speed cold extrusion forming machine that squeezes spline mould and carries out, the miner diameter end of sleeve blank is put into the die that squeezes spline mould downwards, by hydraulic press, with the impulse force of 300 tons, drive the spline shaping mould (plug) of crowded spline mould, forward extrusion forms spline in the curved surface chamber of bigger diameter end, make isolator splined sleeve blank, as shown in Figure 3.
Described machined refers to and utilizes numerically controlled lathe to carry out fine finishining and the end face chamfer machining (doing product size) of isolator splined sleeve blank surfaces externally and internally, comprises chamfering, turning, cylindrical grinding etc., and processing method adopts common machine processing method.After this step, the case hardness of isolator splined sleeve blank is HR30N77.5-82.
Described quenching is carried out in multipurpose furnace, and treatment temperature is 850-880 ℃, and the time is 6 hours.
Described tempering is carried out in industrial tempering furnace, and temperature is 200 ℃, and the time is 1.5 hours.
Described cleaning refers to water-soluble cleaning fluid and cleans, and described grinding machine processing refers to that effects on surface and endoporus carry out the processing of precision and fineness, all adopt common process.
The isolator splined sleeve obtaining through treatment process of the present invention, through metallographic, detect, its case hardness can reach 58~62HRC, centre hardness 35~40HRC, 1~3 grade, carbide, 1~4 grade of martensite, 1~4 grade of retained austenite, 1~4 grade of heart portion ferrite, access times can reach 30000 to 50000 times, meet the high work load of automobile engine, the working environment demand of high-frequency action completely.
The above embodiment of the present invention is to explanation of the present invention and can not be for limiting the present invention, and the implication suitable with claims of the present invention and any change in scope, all should think to be included in the scope of claims.

Claims (8)

1. the cold extruding formation process of an isolator splined sleeve, it is characterized in that comprising the following steps: take hollow pipe as raw material, according to the rules after size blanking, anneal successively, tack, ball blast, phospholeum processing, cold-extruded shaping, the moulding of cold-extruded spline, machined, quenching, tempering, ball blast, cleaning, grinding machine processing, obtain finished product isolator splined sleeve.
2. the cold extruding formation process of isolator splined sleeve according to claim 1, is characterized in that: described annealing is carried out in industry quenching resistance furnace, and annealing temperature is 750-800 ℃, and annealing time is 6~7h.
3. the cold extruding formation process of isolator splined sleeve according to claim 1, is characterized in that: described ball blast refers to cast steel ball and carry out shotblasting processing, and the ball blast time is 5~6min.
4. the cold extruding formation process of isolator splined sleeve according to claim 1, is characterized in that: described phospholeumization is processed and comprised that phosphatization is processed and saponification is processed, and wherein phosphatization processing comprises the following steps:
A1: by the clear water rinsing twice for hollow materials in the tube after shotblasting is processed, to remove hollow pipe surface dirt;
A2: the hollow materials in the tube of removing after dust are removed to surface and oil contaminant with the spirit of deoiling of 80~90 ℃;
A3: the hot water rinsing twice by the hollow materials in the tube after wipe oil with 70~80 ℃, the spirit of deoiling of removing remained on surface;
A4: the hollow materials in the tube after step a3 processes are immersed in Phosphating Solution and carry out phosphatization processing, Phosphating Solution comprises each component of following percentage by weight: zinc oxide 15-20%, zinc dihydrogen phosphate 20-25%, nitric acid 15-25%, citric acid 6-10%, nickelous sulfate 1-3%, sodium molybdate 1-3%, surplus are water, phosphatization treatment conditions are: full acidity 40-60Pt, free acidity 7-10Pt, acid ratio=TA/FA6-8, promoter 1-3Pt, phosphatization temperature is 70~80 ℃, phosphating time is 10~15min;
A5: the hollow materials in the tube after phosphatization is processed are filtered to 20~40s with normal temperature clear water, remove the Phosphating Solution of remained on surface;
A6: by 70~80 ℃ of hot-water soak 40~60s for the hollow materials in the tube after clear water filters, improve the temperature of workpiece.
A7: the workpiece through hot water heating is immersed in saponification liquor and carries out saponification processing, the hydrotrope that the composition of saponification liquor is odium stearate, the quality proportioning of odium stearate and water is 1 ︰ 8,70~80 ℃ of solution temperatures, soak time 40~60s.
5. the cold extruding formation process of isolator splined sleeve according to claim 1, it is characterized in that: described cold-extruded shaping is carried out being equipped with on the high-speed cold extrusion forming machine of shaping mould, hollow materials in the tube after phospholeumization is processed are put into the die of shaping mould immediately, by shaping mould plug be pressed into die, the hollow materials in the tube of drift forward extrusion for impulse force by hydraulic press with 300 tons, form the sleeve blank with bigger diameter end and miner diameter end.
6. the cold extruding formation process of isolator splined sleeve according to claim 1, it is characterized in that: described cold-extruded spline is molded over to be equipped with on the high-speed cold extrusion forming machine that squeezes spline mould and carries out, the miner diameter end of sleeve blank is put into the die that squeezes spline mould downwards, by hydraulic press, with the impulse force of 300 tons, drive the spline shaping mould of crowded spline mould, forward extrusion forms spline in the curved surface chamber of bigger diameter end, makes isolator splined sleeve blank.
7. the cold extruding formation process of isolator splined sleeve according to claim 1, is characterized in that: described quenching is carried out in multipurpose furnace, and treatment temperature is 850-880 ℃, and the time is 6 hours.
8. the cold extruding formation process of isolator splined sleeve according to claim 1, is characterized in that: described tempering is carried out in industrial tempering furnace, and temperature is 200 ℃, and the time is 1.5 hours.
CN201410304849.8A 2014-06-30 2014-06-30 The cold extruding formation process of isolator splined sleeve CN104148888B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410304849.8A CN104148888B (en) 2014-06-30 2014-06-30 The cold extruding formation process of isolator splined sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410304849.8A CN104148888B (en) 2014-06-30 2014-06-30 The cold extruding formation process of isolator splined sleeve

Publications (2)

Publication Number Publication Date
CN104148888A true CN104148888A (en) 2014-11-19
CN104148888B CN104148888B (en) 2016-06-29

Family

ID=51874605

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410304849.8A CN104148888B (en) 2014-06-30 2014-06-30 The cold extruding formation process of isolator splined sleeve

Country Status (1)

Country Link
CN (1) CN104148888B (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105057995A (en) * 2015-07-28 2015-11-18 宁波捷成轴业有限公司 Spline extrusion forming technological method
CN105382507A (en) * 2015-11-17 2016-03-09 韶能集团韶关宏大齿轮有限公司 Removing method for asymmetric stress of cold extrusion cycloidal gear
CN105729067A (en) * 2016-03-27 2016-07-06 江苏海宇机械有限公司 Machining technology for engine drive sleeves
CN105880304A (en) * 2016-05-27 2016-08-24 上海工程技术大学 Cold extruding forming method used for automotive spline sleeve part
CN106112402A (en) * 2016-07-29 2016-11-16 余姚市婉珍五金厂 A kind of sleeve cold extrusion processing technics
CN107138926A (en) * 2017-06-20 2017-09-08 江苏威鹰机械有限公司 Automobile CVT automatic transmission guide wheel shaft manufacturing process
CN107414415A (en) * 2017-06-14 2017-12-01 江苏森威精锻有限公司 A kind of accurate external splines pipe one-step moulding method
CN108057992A (en) * 2017-12-06 2018-05-22 浙江浙研冷挤压有限公司 A kind of preparation method of new-energy automobile drive motor shaft
CN108406245A (en) * 2018-05-28 2018-08-17 重庆创精温锻成型有限公司 A kind of lightweight new-energy automobile driving motor shaft production method
CN108817866A (en) * 2018-08-01 2018-11-16 宁波普泽机电有限公司 A kind of processing technology of one-way-sleeve
CN109129536A (en) * 2018-10-30 2019-01-04 长沙博大机械零部件有限公司 A kind of environment protection process technique for sleeve part stretch process
CN110270600A (en) * 2019-06-25 2019-09-24 杭州康兰汽车零部件有限公司 A kind of steering post jacket pipe manufacturing method
CN111618527A (en) * 2020-07-13 2020-09-04 合肥工业大学 Method for repairing worn and failed cylinder barrel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002113545A (en) * 2000-10-10 2002-04-16 Ooka Giken Kk Hub high-crutch and method for producing the clutch, and cold-forging apparatus for producing the clutch
CN1772431A (en) * 2004-11-12 2006-05-17 陈萌 Maching process and mold for annulus of external gear reduced one-way device
CN102501036A (en) * 2011-10-28 2012-06-20 宁波惠山汽配制造有限公司 Machining method of gears for one-way clutches
CN103341737A (en) * 2013-07-12 2013-10-09 盐城工学院 Machining method for improving coaxiality of special-shaped cavity and internal spline of start guide cylinder
CN103447772A (en) * 2013-09-11 2013-12-18 宁波市奇精机械有限公司 Spline machining technology

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002113545A (en) * 2000-10-10 2002-04-16 Ooka Giken Kk Hub high-crutch and method for producing the clutch, and cold-forging apparatus for producing the clutch
CN1772431A (en) * 2004-11-12 2006-05-17 陈萌 Maching process and mold for annulus of external gear reduced one-way device
CN102501036A (en) * 2011-10-28 2012-06-20 宁波惠山汽配制造有限公司 Machining method of gears for one-way clutches
CN103341737A (en) * 2013-07-12 2013-10-09 盐城工学院 Machining method for improving coaxiality of special-shaped cavity and internal spline of start guide cylinder
CN103447772A (en) * 2013-09-11 2013-12-18 宁波市奇精机械有限公司 Spline machining technology

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105057995A (en) * 2015-07-28 2015-11-18 宁波捷成轴业有限公司 Spline extrusion forming technological method
CN105382507A (en) * 2015-11-17 2016-03-09 韶能集团韶关宏大齿轮有限公司 Removing method for asymmetric stress of cold extrusion cycloidal gear
CN105729067A (en) * 2016-03-27 2016-07-06 江苏海宇机械有限公司 Machining technology for engine drive sleeves
CN105880304A (en) * 2016-05-27 2016-08-24 上海工程技术大学 Cold extruding forming method used for automotive spline sleeve part
CN106112402A (en) * 2016-07-29 2016-11-16 余姚市婉珍五金厂 A kind of sleeve cold extrusion processing technics
CN107414415A (en) * 2017-06-14 2017-12-01 江苏森威精锻有限公司 A kind of accurate external splines pipe one-step moulding method
CN107138926A (en) * 2017-06-20 2017-09-08 江苏威鹰机械有限公司 Automobile CVT automatic transmission guide wheel shaft manufacturing process
CN108057992A (en) * 2017-12-06 2018-05-22 浙江浙研冷挤压有限公司 A kind of preparation method of new-energy automobile drive motor shaft
CN108406245A (en) * 2018-05-28 2018-08-17 重庆创精温锻成型有限公司 A kind of lightweight new-energy automobile driving motor shaft production method
CN108817866A (en) * 2018-08-01 2018-11-16 宁波普泽机电有限公司 A kind of processing technology of one-way-sleeve
CN109129536A (en) * 2018-10-30 2019-01-04 长沙博大机械零部件有限公司 A kind of environment protection process technique for sleeve part stretch process
CN110270600A (en) * 2019-06-25 2019-09-24 杭州康兰汽车零部件有限公司 A kind of steering post jacket pipe manufacturing method
CN111618527A (en) * 2020-07-13 2020-09-04 合肥工业大学 Method for repairing worn and failed cylinder barrel

Also Published As

Publication number Publication date
CN104148888B (en) 2016-06-29

Similar Documents

Publication Publication Date Title
CN101422861B (en) Accurate forming method of special-shape deep-hole type parts
CN106756334B (en) A kind of production method of aero-engine labyrinth precision die forgings
Gronostajski et al. The main aspects of precision forging
CN101342566B (en) Integral cold forging technique for angular wheel shaft
CN101579800B (en) Warm/cold forging process for precision forgings with integrated long shafts and inner ball cages
CN102260831B (en) Fastener, such as screw bolt, screw nut and the like made from high-strength steel
CN100391688C (en) Art for mfg. Austempered Ductile iron gear for diesel engine
CN102350615B (en) Shunt blocking forming method for star-shaped sleeve
US8230597B2 (en) Forming preforms and parts therefrom
CN102310310B (en) Composite machining process for inner and outer rings of narrow-series thin-walled high-precision conical thin-walled bearings
CN101695806B (en) Process for manufacturing backward gear of automobile gearbox
CN102837165B (en) Manufacturing method for final-stage driving gear of high-power coal mining machine
DE102007023087B4 (en) Method of making a cam
CN102688965B (en) A kind of forging method of R5 level mooring cable annex Kenter shackle
CN1247345C (en) Hot working method of die steel large-scale modular forgings
CN101905250B (en) Chipless forming method for gear stick and section gear through hot extrusion
CN101695739B (en) Forging process of large tee and large skew tee
Mahajan et al. A review on ball burnishing process
Kchaou et al. Failure mechanisms of H13 die on relation to the forging process–A case study of brass gas valves
CN104384874A (en) Processing process of automobile engine crank shaft
EP1157776A2 (en) Cold formed high-loaded bearing steel parts and process for forming same
CN103737334B (en) High-strength gear processing technology
CN105108457B (en) The processing method of overall driven disc
CN105729079B (en) A kind of processing method of piston forging die
CN101391368A (en) Processing method of deep-hole pin bush parts

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: 315113 No.47, Shizi South Road, jishigang Town, Haishu District, Ningbo City, Zhejiang Province

Patentee after: NINGBO HUISHAN AUTOMOBILE FITTINGS MANUFACTURING Co.,Ltd.

Address before: 315113 No.47, Shizi South Road, jishigang Town, Yinzhou District, Ningbo City, Zhejiang Province

Patentee before: NINGBO HUISHAN AUTOMOBILE FITTINGS MANUFACTURING Co.,Ltd.