[go: up one dir, main page]

CN107755446A - A kind of processing technology of raising DT4C pure iron magnetic behaviors - Google Patents

A kind of processing technology of raising DT4C pure iron magnetic behaviors Download PDF

Info

Publication number
CN107755446A
CN107755446A CN201710875730.XA CN201710875730A CN107755446A CN 107755446 A CN107755446 A CN 107755446A CN 201710875730 A CN201710875730 A CN 201710875730A CN 107755446 A CN107755446 A CN 107755446A
Authority
CN
China
Prior art keywords
extrusion
punch
die
pure iron
processing technology
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
Application number
CN201710875730.XA
Other languages
Chinese (zh)
Inventor
冯再新
惠均
高伟峰
王献民
樊文欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North University of China
Original Assignee
North University of China
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 North University of China filed Critical North University of China
Priority to CN201710875730.XA priority Critical patent/CN107755446A/en
Publication of CN107755446A publication Critical patent/CN107755446A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/20—Making uncoated products by backward extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/02—Dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

本发明公开了一种提高纯铁DT4C磁性性能的加工工艺，具体步骤如下：（1）制备毛坯，切削加工为所需尺寸，进行预处理；（2）根据试样尺寸要求安装模具，并进行预热，预热至200℃‑400℃；（3）将（1）中试样放入已润滑好的模具中进行挤压；（4）挤压成形的杯状件进行退火处理；(5)机械加工退火试样为使用尺寸。本发明方法既提高了利用率，又改善了磁性性能，为DT4C的进一步发展提供了有利条件。

The invention discloses a processing technology for improving the magnetic properties of pure iron DT4C. The specific steps are as follows: (1) prepare the blank, cut it into the required size, and perform pretreatment; (2) install the mold according to the size requirements of the sample, and carry out Preheating, preheating to 200°C-400°C; (3) Put the sample in (1) into a lubricated mold for extrusion; (4) Anneal the extruded cup; (5) ) The machined annealed sample is the size used. The method of the invention not only improves the utilization rate, but also improves the magnetic performance, and provides favorable conditions for the further development of DT4C.

Description

A kind of processing technology of raising DT4C pure iron magnetic behaviors
Technical field
The present invention relates to a kind of processing technology for improving pure iron DT4C magnetic behaviors, belong to metal magnetic technical field.
Background technology
Electrical pure iron is widely used in the component of instrument as soft magnetic materials, such as magnetic pole piece, rotor, housing Deng especially electrical pure iron is mainly characterized by having low impurity in terms of magnetic, and has very high magnetic under moderate magnetic field Conductance and magnetic saturation and very low magnetic hysteresis loss.But its magnetic has its unstability, such as more than 50 DEG C when have it is obvious Magnetic aging phenomenon and magnetic is degenerated.Therefore, in order to improve the magnetic of pure iron, except smelting, in addition to the strict control of heat treatment, it zero For part in forming process, different processes and various technological factors can all influence the magnetic of material to some extent.So To grasp degree of the technological factor of electrical pure iron to effect of magnetic influence, it is proposed that this work.
The content of the invention
Low using the utilization rate of purely mechanic rapidoprint for current hollow cups product, magnetic behavior is poor to ask Topic, the present invention, which proposes, a kind of material-saving and can improve the processing technology of pure iron cup shell magnetic behavior.
The invention provides a kind of processing technology for improving pure iron DT4C magnetic behaviors, comprise the following steps：
The first step：Prepare blank
Specimen size needed for basis, cuts bar before extruding；
Second step：The installation of extrusion die
Indirect-extrusion mould is arranged on four-column type hydraulic press；200 DEG C -400 is preheating to after installing to indirect-extrusion mould ℃；
3rd step：Heat processing technique
800 DEG C -900 DEG C are warming up to using vacuum heat treatment furnace, pure iron DT4C bars is put into and it is heated, in vacuum atmosphere After middle insulation 1-4h, it is immediately placed in the warmed-up good and indirect-extrusion mould of sufficient lubrication and is extruded, squeezed after the completion of extruding Casting die cools down in atmosphere, is made annealing treatment after cooling；
4th step：Machining
It is that part finally uses size by machining part of annealing, must be in time cooled down with emulsion during processing, prevent from processing Hardening.
In above-mentioned technique, indirect-extrusion mould includes cope plate, lower template, is cavity plate above lower template, cavity plate passes through cavity plate Backing plate and cavity plate retainer plate are fixed, and are provided with cushion block on the inside of cavity plate, cushion block bottom is push rod；It is punch-pin below cope plate, it is convex Mould is fixed by convex mould pad and punch retainer, and punch-pin is T-type structure, and the turning position of T-type structure is locked provided with punch-pin Tight nut；Stripper is provided with the middle part of punch-pin, stripper is bolted on cavity plate retainer plate.
Further, cope plate, convex mould pad and punch retainer are fixed by straight pin and bolt, then by punch-pin To be bolted on punch retainer.
Further, cavity plate is fixed in lower template by bolt, straight pin, is squeezed by moving up and down for punch-pin Pressure.
The specific work process of extruding is：（1）Start；（2）Cavity plate, punch-pin are preheated and lubricated；（3）Preheating is completed Afterwards, toward being put into the bar that heats in cavity plate, and tight striker plate is closed；（4）Machine, move down punch-pin, speed 7- 8mm/s, crush stroke 100-200mm, is extruded；（5）After extruding terminates, machine, move up punch-pin, speed is 7-8mm/s, shift motion 100-200mm；（6）After the completion of movement, striker plate is opened, takes out the cups that extruding is completed；（7）It is right Concave-convex mold continuous lubrication, place into bar, repeat step（4）-（6）；（8）After the completion of final extruding, machine is cleared up, again to recessed Punch-pin and other component lubrications；（9）Shutdown.
In above-mentioned technique, in the 3rd step, annealing, specifically the extrusion after cooling is put into vacuum drying oven and added with stove 4-6h, and furnace cooling are incubated after hot to 800-900 DEG C.
The present invention has an advantageous effect in that compared with prior art：Pass through processing of the new technology to sample, the profit of material 70% or so is improved with rate, magnetic flux improves 50% or so, and coercivity have dropped 30% or so.
Brief description of the drawings
Fig. 1 is indirect-extrusion mould installation diagram；
Fig. 2 is the structural representation of cup shell.
In figure：1- push rods, 2- cushion blocks, 3- lower templates, 4- cavity plate backing plates, 5- cavity plate retainer plates, 6- soket head cap screws, 7- are recessed Mould, 8- strippers, 9- punch-pin locking nuts, 10- punch-pin, 11- punch retainers, 12- punch-pin fixing bolts, 13- cope plates, 14- convex mould pads, 15- straight pins.
Embodiment
The present invention is further illustrated below by embodiment, but is not limited to following examples.
Embodiment 1：
Pure iron provided by the invention（DT4C）The processing technology of magnetic behavior is extruded, its method and step is as follows：
（1）Sampling, cuts Φ 65x45mmDT4C bars, is put into and has been heated to 850 DEG C of vacuum drying oven inside holding 1h；
（2）Pretreatment, the bar for being incubated completion is put into the warmed-up good and indirect-extrusion mould (see Fig. 1) of sufficient lubrication Row extruding, extrusion（See Fig. 2）After the completion of air cooling；
The structure of extrusion die is：Indirect-extrusion mould includes cope plate 13, lower template 3, and the top of lower template 3 is cavity plate 7, cavity plate 7 It is fixed by cavity plate backing plate 4 and cavity plate retainer plate 5, the inner side of cavity plate 7 is provided with cushion block 2, and the bottom of cushion block 2 is push rod 1；Cope plate 13 lower sections are punch-pin 10, and punch-pin 10 is fixed by convex mould pad 14 and punch retainer 11, and punch-pin 10 is T-type structure, T-shaped The turning position of structure is provided with punch-pin locking nut 9；Stripper 8 is provided with the middle part of punch-pin, stripper 8 is bolted on cavity plate On retainer plate 5.
Further, cope plate 13, convex mould pad 14 and punch retainer 11 are fixed by straight pin 15 and bolt, so Afterwards by punch-pin 10 to be bolted on punch retainer 11.
Further, cavity plate 7 is fixed in lower template 3 by soket head cap screw 6, straight pin, by being moved down on punch-pin It is dynamic to be extruded.
The specific work process of extruding is：1. start shooting；2. cavity plate, punch-pin are preheated and lubricated；3. after the completion of preheating, The bar heated is put into toward cavity plate, and closes tight striker plate；4. machining, move down punch-pin, speed 7-8mm/ S, crush stroke 100-200mm, is extruded；After 5. extruding terminates, machine, move up punch-pin, speed 7- 8mm/s, shift motion 100-200mm；6. after the completion of mobile, opening striker plate, the cups that extruding is completed are taken out；7. to recessed Mould, punch-pin continuous lubrication, place into bar, repeat step 4. -6.；8. after the completion of final extruding, machine is cleared up, again to bumps Mould and other component lubrications；9. shut down.
（3）Annealing, will（2）Middle extrusion is put into vacuum drying oven with stove heat to being incubated 4h after 900 DEG C, and cold with stove But；
（4）Machining, will（3）Middle cooling samples are part final size by turnery processing；
（5）According to national standard GB/T 3656-2008 and GB/T 6983-2008, in Taiyuan steel enterprise technique center physical and chemical experiment Room measures its magnetic conductivity and magnetic flux, draws：Original processing mode（I.e. by purely mechanic processing mode, bar is processed as Cups, processing dimension are consistent with the processing dimension of new technology of the present invention）The cups coercivity of processing is：28.84A/m magnetic Flux is 12.38H/m, the rear cups coercivity 23.57A/m of new technology processing, magnetic flux 20.13H/m, and coercivity declines 5.27 A/m, magnetic flux increase 7.75 H/m.
Embodiment 2
Pure iron provided by the invention（DT4C）The processing technology of magnetic behavior is extruded, its method and step is as follows：
（1）Sampling, cuts Φ 55x42mmDT4C bars, is put into and has been heated to 850 DEG C of vacuum drying oven inside holding 1h；
（2）Pretreatment, the bar for being incubated completion is put into the warmed-up good and indirect-extrusion mould (see Fig. 1) of sufficient lubrication Row extruding, extrusion（See Fig. 2）After the completion of air cooling；
It is same as Example 1 using the extrusion die described in embodiment 1, extrusion process in the present embodiment.
（3）Annealing, will（2）Middle extrusion is put into vacuum drying oven with stove heat to being incubated 4h after 900 DEG C, and cold with stove But；
（4）Machining, will（3）Middle cooling samples are part final size by turnery processing；
（5）According to national standard GB/T 3656-2008 and GB/T 6983-2008, in Taiyuan steel enterprise technique center physical and chemical experiment Room measures its magnetic conductivity and magnetic flux, draws：Original processing mode（I.e. by purely mechanic processing mode, bar is processed as Cups, processing dimension are consistent with the processing dimension of new technology）The cups coercivity of processing is：27.68A/m magnetic flux is 12.85H/m, the rear cups coercivity 21.54A/m of new technology processing, magnetic flux 23.48H/m, coercivity have dropped 6.94A/m, magnetic flux increase 10.63 H/m.
The present invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-described embodiment, at this In the those of ordinary skill's possessed knowledge of field, various changes can also be made on the premise of present inventive concept is not departed from Change.

Claims (8)

1. 一种提高纯铁DT4C磁性性能的加工工艺，其特征在于包括以下步骤：1. a kind of processing technology that improves pure iron DT4C magnetic property, it is characterized in that comprising the following steps: 第一步：制备毛坯Step 1: Prepare the blank 挤压前根据所需试样尺寸，切削棒料；Cut the bar according to the required sample size before extrusion; 第二步：挤压模具的安装Step 2: Installation of Extrusion Die 将反挤压模具安装在四柱式油压机上；安装完毕之后对反挤压模具预热到200℃-400℃；Install the reverse extrusion die on the four-column hydraulic press; preheat the reverse extrusion die to 200°C-400°C after installation; 第三步：热加工工艺The third step: thermal processing process 采用真空热处理炉升温至800℃-900℃，放入纯铁DT4C棒料对其进行加热，在真空气氛中保温1-4h后，立即放入已预热好并且充分润滑的反挤压模具中进行挤压，挤压完成后挤压件在空气中冷却，冷却后进行退火处理；Use a vacuum heat treatment furnace to raise the temperature to 800°C-900°C, put in a pure iron DT4C bar to heat it, keep it in a vacuum atmosphere for 1-4h, and immediately put it into a preheated and fully lubricated back-extrusion mold Extrusion is carried out, after the extrusion is completed, the extrusion is cooled in the air, and annealing is carried out after cooling; 第四步：机械加工Step 4: Machining 通过切削加工退火件为零件最终使用尺寸。The annealed part is machined to the final use size of the part. 2.根据权利要求1所述的提高纯铁DT4C磁性性能的加工工艺，其特征在于：反挤压模具包括上模板、下模板，下模板上方为凹模，凹模通过凹模垫板和凹模固定圈进行固定，凹模内侧设有垫块，垫块底部为顶杆；上模板下方为凸模，凸模通过凸模垫板和凸模固定板进行固定，凸模为T型结构，T型结构的拐角部位设有凸模锁紧螺母；凸模中部设有退料板，退料板通过螺栓固定在凹模固定圈上。2. The processing technology for improving the magnetic properties of pure iron DT4C according to claim 1 is characterized in that: the reverse extrusion die comprises an upper die plate and a lower die plate, and the upper die plate is a die, and the die die passes through the die backing plate and the die The mold fixing ring is used for fixing, and the inner side of the die is provided with a cushion block, and the bottom of the cushion block is a ejector rod; the lower part of the upper template is a punch, and the punch is fixed by the punch backing plate and the punch fixing plate. The punch is a T-shaped structure. The corners of the T-shaped structure are provided with locking nuts of the punch; the middle of the punch is provided with a stripper plate, which is fixed on the fixed ring of the die by bolts. 3.根据权利要求2所述的提高纯铁DT4C磁性性能的加工工艺，其特征在于：上模板、凸模垫板以及凸模固定板通过圆柱销和螺栓固定，然后将凸模以螺栓连接在凸模固定板上。3. The processing technology for improving the magnetic properties of pure iron DT4C according to claim 2 is characterized in that: the upper template, the punch backing plate and the punch fixing plate are fixed by straight pins and bolts, and then the punch is bolted to the The punch is fixed on the plate. 4.根据权利要求2所述的提高纯铁DT4C磁性性能的加工工艺，其特征在于：凹模通过螺栓、圆柱销固定在下模板上，通过凸模的上下移动进行挤压。4. The processing technology for improving the magnetic properties of pure iron DT4C according to claim 2, characterized in that: the die is fixed on the lower template by bolts and cylindrical pins, and is extruded by moving up and down of the punch. 5.根据权利要求1所述的提高纯铁DT4C磁性性能的加工工艺，其特征在于：挤压过程中，挤压速度为7-8mm/s，挤压行程为100-200mm。5. The processing technology for improving the magnetic properties of pure iron DT4C according to claim 1, characterized in that: during the extrusion process, the extrusion speed is 7-8mm/s, and the extrusion stroke is 100-200mm. 6.根据权利要求1所述的提高纯铁DT4C磁性性能的加工工艺，其特征在于：挤压的具体工作过程为：6. The processing technology for improving the magnetic properties of pure iron DT4C according to claim 1, characterized in that: the specific working process of extrusion is: （1）开机；(1) start up; （2）对凹模、凸模进行预热并润滑；(2) Preheat and lubricate the die and punch; （3）预热完成后，往凹模内放入加热好的棒料，并合紧挡料板；(3) After the preheating is completed, put the heated bar into the die, and close the baffle; （4）开动机器，使凸模向下移动，速度为7-8mm/s，挤压行程100-200mm，进行挤压；(4) Start the machine to move the punch downward at a speed of 7-8mm/s and an extrusion stroke of 100-200mm for extrusion; （5）挤压结束后，开动机器，使凸模向上移动，速度为7-8mm/s，移动行程100-200mm；(5) After extrusion, start the machine to move the punch upward at a speed of 7-8mm/s and a moving stroke of 100-200mm; （6）移动完成后，打开挡料板，取出挤压完成的杯状件；(6) After the movement is completed, open the baffle and take out the extruded cup; （7）对凹凸模持续润滑，再放入棒料，重复步骤（4）-（6）；(7) Continuously lubricate the concave and convex die, then put in the bar, and repeat steps (4)-(6); （8）最终挤压完成后，清理机器，再次对凹凸模以及其它部件润滑；(8) After the final extrusion is completed, clean the machine and lubricate the concave-convex die and other parts again; （9）关机。(9) shutdown. 7.根据权利要求1所述的提高纯铁DT4C磁性性能的加工工艺，其特征在于：第三步中，退火处理，具体是将冷却后的挤压件放入真空炉内随炉加热至800-900℃后保温4-6h，并随炉冷却。7. The processing technology for improving the magnetic properties of pure iron DT4C according to claim 1, characterized in that: in the third step, annealing treatment, specifically putting the cooled extrusion into a vacuum furnace and heating with the furnace to 800 After -900℃, keep it warm for 4-6h, and cool down with the furnace. 8.根据权利要求1所述的提高纯铁DT4C磁性性能的加工工艺，其特征在于：所述第四步中，加工时必须用乳化液及时冷却，防止加工硬化。8. The processing technology for improving the magnetic properties of pure iron DT4C according to claim 1, characterized in that: in the fourth step, the emulsion must be cooled in time during processing to prevent work hardening.
CN201710875730.XA 2017-09-25 2017-09-25 A kind of processing technology of raising DT4C pure iron magnetic behaviors Pending CN107755446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710875730.XA CN107755446A (en) 2017-09-25 2017-09-25 A kind of processing technology of raising DT4C pure iron magnetic behaviors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710875730.XA CN107755446A (en) 2017-09-25 2017-09-25 A kind of processing technology of raising DT4C pure iron magnetic behaviors

Publications (1)

Publication Number Publication Date
CN107755446A true CN107755446A (en) 2018-03-06

Family

ID=61267534

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710875730.XA Pending CN107755446A (en) 2017-09-25 2017-09-25 A kind of processing technology of raising DT4C pure iron magnetic behaviors

Country Status (1)

Country Link
CN (1) CN107755446A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108500078A (en) * 2018-04-25 2018-09-07 中北大学 The special gradual device for discharging of Gleeble-3500 testing machines
CN110802191A (en) * 2019-07-12 2020-02-18 江苏创一精锻有限公司 Cup-shaped body forming die with boss at bottom of inner cavity and process

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101284343A (en) * 2008-06-05 2008-10-15 中国船舶重工集团公司第十二研究所 Special-shaped curved surface stator precise compound plasticity shaping process and die
CN101428303A (en) * 2008-11-27 2009-05-13 江苏飞船股份有限公司 Material returning plate assistant guide structure of backward extrusion die
CN102950165A (en) * 2012-11-05 2013-03-06 华南理工大学 Warm extrusion forming process of stylus printing head base and forming mould thereof
CN104624688A (en) * 2013-11-13 2015-05-20 青岛旭升封头有限公司 Hot extrusion process of bush part
CN204817522U (en) * 2015-07-16 2015-12-02 刘玉霞 Bore bit calor innatus processing forming die
CN204974784U (en) * 2015-08-26 2016-01-20 重庆文理学院 A anti - extrusion die for producing long and thin dark blind hole aluminium alloy shell
CN105414233A (en) * 2015-03-10 2016-03-23 东北大学 Backward extrusion die with back pressure and processing technology adopting same
CN205200190U (en) * 2015-10-29 2016-05-04 重庆良能机械有限公司 A anti - extrusion die for deep hole cylindric piece
CN106623469A (en) * 2016-11-11 2017-05-10 南京理工大学 Hot extrusion die and technique for thin-wall deep aluminum alloy cartridge piece

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101284343A (en) * 2008-06-05 2008-10-15 中国船舶重工集团公司第十二研究所 Special-shaped curved surface stator precise compound plasticity shaping process and die
CN101428303A (en) * 2008-11-27 2009-05-13 江苏飞船股份有限公司 Material returning plate assistant guide structure of backward extrusion die
CN102950165A (en) * 2012-11-05 2013-03-06 华南理工大学 Warm extrusion forming process of stylus printing head base and forming mould thereof
CN104624688A (en) * 2013-11-13 2015-05-20 青岛旭升封头有限公司 Hot extrusion process of bush part
CN105414233A (en) * 2015-03-10 2016-03-23 东北大学 Backward extrusion die with back pressure and processing technology adopting same
CN204817522U (en) * 2015-07-16 2015-12-02 刘玉霞 Bore bit calor innatus processing forming die
CN204974784U (en) * 2015-08-26 2016-01-20 重庆文理学院 A anti - extrusion die for producing long and thin dark blind hole aluminium alloy shell
CN205200190U (en) * 2015-10-29 2016-05-04 重庆良能机械有限公司 A anti - extrusion die for deep hole cylindric piece
CN106623469A (en) * 2016-11-11 2017-05-10 南京理工大学 Hot extrusion die and technique for thin-wall deep aluminum alloy cartridge piece

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
黄树海等: ""杯形件成形工艺与模具设计", 《锻压设备与制造技术》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108500078A (en) * 2018-04-25 2018-09-07 中北大学 The special gradual device for discharging of Gleeble-3500 testing machines
CN110802191A (en) * 2019-07-12 2020-02-18 江苏创一精锻有限公司 Cup-shaped body forming die with boss at bottom of inner cavity and process

Similar Documents

Publication Publication Date Title
JP6515376B2 (en) Construction molding method for manufacturing homogenized forgings
CN104532154B (en) High rigidity height polishing pre-hardening plastic mould steel and preparation technology thereof
Krajewski et al. Overview of quick plastic forming technology
CN106170577B (en) Method for forming parts from sheet metal alloys
CN104162555B (en) A semi-solid thixotropic-plastic composite forming method
CN110252899B (en) A kind of titanium alloy thin-walled component rapid heating cold mold hot plate forming method
CN102206739A (en) Dual-refinement treatment process of hot mould steel structure
CN104588997A (en) Method for preparing TiAl alloy component by near-isothermal die forging
CN111206193A (en) A kind of forming method of aluminum alloy components by slow hot forming and quenching
CN107755446A (en) A kind of processing technology of raising DT4C pure iron magnetic behaviors
CN107855450A (en) Aluminium alloy car integration forging technology production line and forging method
CN107587081A (en) A kind of high polishing pre-hardening mould steel and its preparation technology
CN107790512A (en) A kind of backward extrusion technologies of tin bronze QSn7 0.2
CN111589920A (en) Hot stamping method
CN107460416A (en) Agitating friction weldering tailor welded solid solution aging integral forming method
CN107866660A (en) A kind of die steel processing technology
CN107127282A (en) A kind of isothermal forging method of the high muscle thin web plate class part of magnesium alloy
CN109811251A (en) A kind of high polishing pre-hardening mould steel and its preparation process
CN110586823A (en) Aluminum alloy over-temperature forging method
CN102127627A (en) Method for obtaining high hardness and low deformation crack inclination of carbon tool steel
CN108580574A (en) A kind of method of the nearly solid state pressure forming of threeway part blank three-dimensional
JP2022549682A (en) Aluminum manufacturing method
CN116329465A (en) Isothermal Forging Method of Titanium Alloy Disc
CN113814286A (en) Continuous thixoextrusion device and method for shaft sleeve part
CN206046962U (en) Forge hot insulation operation lines

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180306