CN102430677A - Aluminum alloy constant-temperature fine die forging process - Google Patents

Aluminum alloy constant-temperature fine die forging process Download PDF

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Publication number
CN102430677A
CN102430677A CN2011103428262A CN201110342826A CN102430677A CN 102430677 A CN102430677 A CN 102430677A CN 2011103428262 A CN2011103428262 A CN 2011103428262A CN 201110342826 A CN201110342826 A CN 201110342826A CN 102430677 A CN102430677 A CN 102430677A
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China
Prior art keywords
forging
temperature
aluminum alloy
blank material
mould
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Pending
Application number
CN2011103428262A
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Chinese (zh)
Inventor
李念奎
范长龙
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HARBIN ZHONGFEI NEW TECHNOLOGY Co Ltd
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HARBIN ZHONGFEI NEW TECHNOLOGY Co Ltd
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Priority to CN2011103428262A priority Critical patent/CN102430677A/en
Publication of CN102430677A publication Critical patent/CN102430677A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an aluminum alloy constant-temperature fine die forging process, relating to an aluminum alloy die forging process. Aiming at problems of low temperature, waste generation due to overlarge forging blank materials, unstable process and easiness in soaking a mould of the traditional aluminum alloy constant-temperature fine die forming mould, the aluminum alloy constant-temperature fine die forging process comprises the following steps of: 1, determining a size of a forging piece blank material; 2, heating a forging mould and a forging piece blank material; 3, after the material temperature is reached, hoisting a forging piece blank material in a well furnace outside and then placing a first basket of a box furnace, continuously preserving the temperature; 4, smearing graphite lubricant on a mould, then placing the forging piece blank material on the mould; 5, forging and pressing; 6, starting an ejector rod for ejecting a button, ejecting a forming piece, clamping the forging piece by using a material clamp, placing on a counter top; and 7, grinding burrs on the bottom of the forging piece by using a angle grinder cleanly, and placing on the counter top for reducing the temperature. The invention is suitable for aluminum alloy constant-temperature fine die forging.

Description

The smart contour forging technique of aluminum alloy isothermal
Technical field
The present invention relates to a kind of aluminium alloy contour forging technique.
Background technology
Isothermal die forging process is called for short isothermal forging, is the die forging that mold heated arrives the blank deformation temperature and is out of shape with low strain rate.The isothermal forging technology begins continuous maturation from the seventies in 20th century, and generally is used for the manufacturing of aeronautics and space aircraft important structure part, has obtained very significantly technical economic benefit.
That the isothermal forging technology is mainly used in is complex-shaped in the aerospace industry, the demanding difficult moulding material forging of the internal soundness production on the high muscle of thin web plate, forging surface.Moreover, compare with conventional die forging, the isothermal die forging process technology is a power-saving technology still.But, during isothermal die forging process is only applicable to, the forging production of small lot.
Whether the setting of technology has determined rationally whether forging can forge qualified products in the smart die forging of isothermal, and the complexity of forging.
Many times because mould less than warm or part less than temperature cause open forge former defectives such as being discontented with, being stained with mould appear fill in China's isothermal forging at present.
Summary of the invention
The purpose of this invention is to provide the smart contour forging technique of a kind of aluminum alloy isothermal, not enough to solve the smart stamp forging mould temperature of present aluminum alloy isothermal, the excessive generation waste material of rough forging material, technology is unstable, the problem of being stained with mould easily.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: said method comprising the steps of: step 1: the size of confirming the forging blank material;
Step 2: forging mold and forging blank material are heated: forging mold is loaded on the forging press die holder heats, temperature is heated to 380 ± 3 ℃; Heat after 5 hours heating forging blank material in shaft furnace, 480 ± 3 ℃ of temperature; Simultaneously with batch-type furnace heating, 480 ℃ of constant temperatures;
Step 3: after the material temperature arrives, forging blank material in the shaft furnace is hung out a basket putting into batch-type furnace, continue insulation;
Step 4: on mould, smear graphite lubrication, then the forging blank material is put on the mould, the position of forging blank material will be ajusted;
Step 5: the descending button of pressing the Forging Machine platform forges and presses, and until complete matched moulds, behind the pressurize 5s, presses the up button of Forging Machine platform, and forging press rises, and stops until reaching spacing;
Step 6: start push rod and eject button, drip molding is ejected, the materials pincers are clamped out forging, place the case platform;
Step 7: use the angle grinding machine that the burr polishing of forging bottom is clean, place the cooling of case platform.
The present invention has following beneficial effect: this method can guarantee mold heated to temperature, and in forging process, can well control temperature, its mold temperature is changed or stable in 3-5 ℃ of scope.The defective that produces inadequately because of mold temperature can not appear during forging.
The specific embodiment
The specific embodiment one: the method for this embodiment may further comprise the steps: step 1: the size of confirming the forging blank material;
Step 2: forging mold and forging blank material are heated: forging mold is loaded on the forging press die holder heats, temperature is heated to 380 ± 3 ℃; Heat after 5 hours heating forging blank material in shaft furnace, 480 ± 3 ℃ of temperature; Simultaneously with batch-type furnace heating, 480 ℃ of constant temperatures;
Step 3: after the material temperature arrives, forging blank material in the shaft furnace is hung out a basket putting into batch-type furnace, continue insulation;
Step 4: on mould, smear graphite lubrication, then the forging blank material is put on the mould, the position of forging blank material will be ajusted;
Step 5: the descending button of pressing the Forging Machine platform forges and presses, and until complete matched moulds, behind the pressurize 5s, presses the up button of Forging Machine platform, and forging press rises, and stops until reaching spacing;
Step 6: start push rod and eject button, drip molding is ejected, the materials pincers are clamped out forging, place the case platform;
Step 7: use the angle grinding machine that the burr polishing of forging bottom is clean, place the cooling of case platform.
The specific embodiment two: blank material weight is confirmed as forging net weight+0.08kg in the step 1 of this embodiment, thereby confirms size; Avoid producing waste material.Other step is identical with the specific embodiment one.
The specific embodiment three: forging pressure is 7000-8000KN in the step 5 of this embodiment; Forging is opened and forged temperature is 450-480 ℃, and final forging temperature is 450-480 ℃; Mold temperature keeps 380 ± 3 ℃, should smear graphite at the mold overbrushing when lubricated, prevents the patrix sticking to mould, and forming effect is good.Other step is identical with the specific embodiment one.
The specific embodiment four: forging mold of this embodiment and push rod material adopt the 5CrNiMo hot die steel.It is better to be shaped.Other step is identical with the specific embodiment one.

Claims (4)

1. the smart contour forging technique of aluminum alloy isothermal is characterized in that said method comprising the steps of: step 1: the size of confirming the forging blank material;
Step 2: forging mold and forging blank material are heated: forging mold is loaded on the forging press die holder heats, temperature is heated to 380 ± 3 ℃; Heat after 5 hours heating forging blank material in shaft furnace, 480 ± 3 ℃ of temperature; Simultaneously with batch-type furnace heating, 480 ℃ of constant temperatures;
Step 3: after the material temperature arrives, forging blank material in the shaft furnace is hung out a basket putting into batch-type furnace, continue insulation;
Step 4: on mould, smear graphite lubrication, then the forging blank material is put on the mould, the position of forging blank material will be ajusted;
Step 5: the descending button of pressing the Forging Machine platform forges and presses, and until complete matched moulds, behind the pressurize 5s, presses the up button of Forging Machine platform, and forging press rises, and stops until reaching spacing;
Step 6: start push rod and eject button, drip molding is ejected, the materials pincers are clamped out forging, place the case platform;
Step 7: use the angle grinding machine that the burr polishing of forging bottom is clean, place the cooling of case platform.
2. according to the smart contour forging technique of the said aluminum alloy isothermal of claim 1, it is characterized in that blank material weight is confirmed as forging net weight+0.08kg in the said step 1, thereby confirm size.
3. according to claim 1 or the smart contour forging technique of 2 said aluminum alloy isothermals, it is characterized in that forging pressure is 7000-8000KN in the said step 5; Forging is opened and forged temperature is 450-480 ℃, and final forging temperature is 450-480 ℃; Mold temperature keeps 380 ± 3 ℃.
4. according to the smart contour forging technique of the said aluminum alloy isothermal of claim 3, it is characterized in that said forging mold and push rod material adopt the 5CrNiMo hot die steel.
CN2011103428262A 2011-10-27 2011-10-27 Aluminum alloy constant-temperature fine die forging process Pending CN102430677A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103071747A (en) * 2013-01-18 2013-05-01 洛阳秦汉冷锻有限公司 Fan-shaped forged piece and precision forging process for same
CN105964849A (en) * 2016-06-14 2016-09-28 山东南山铝业股份有限公司 Isothermal die forging technology for large-size high-strength aluminum alloy parts
CN107866511A (en) * 2017-11-09 2018-04-03 中车青岛四方机车车辆股份有限公司 A kind of method for forging and molding of carbon nanotube enhanced aluminium-based composite material
CN109570417A (en) * 2018-11-23 2019-04-05 哈尔滨工业大学 A kind of accurate forming method of aluminium alloy thin-walled curved surface muscle forging
CN109622840A (en) * 2018-12-11 2019-04-16 陕西宏远航空锻造有限责任公司 A kind of complicated 7075 aluminum alloy casing isothermy die forging methods of the more muscle classes of large size
CN113774296A (en) * 2021-09-08 2021-12-10 中国航发北京航空材料研究院 Preparation process for improving comprehensive performance of aluminum alloy thick plate and forging
CN115608903A (en) * 2022-12-20 2023-01-17 山西恒强电力科技有限公司 Aluminum alloy forging and pressing piece processing device

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CN102162469A (en) * 2011-04-14 2011-08-24 四川振强模锻有限公司 Aluminum blade of fan and manufacturing technology thereof

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CN101362157A (en) * 2008-09-24 2009-02-11 河南科技大学 Internal combustion engine piston step-by-step extrusion molding method and matching molding die
CN101559471A (en) * 2009-05-22 2009-10-21 哈尔滨工业大学 Aluminum alloy complex disc part isothermal precision forging process method
CN102162469A (en) * 2011-04-14 2011-08-24 四川振强模锻有限公司 Aluminum blade of fan and manufacturing technology thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103071747A (en) * 2013-01-18 2013-05-01 洛阳秦汉冷锻有限公司 Fan-shaped forged piece and precision forging process for same
CN105964849A (en) * 2016-06-14 2016-09-28 山东南山铝业股份有限公司 Isothermal die forging technology for large-size high-strength aluminum alloy parts
CN107866511A (en) * 2017-11-09 2018-04-03 中车青岛四方机车车辆股份有限公司 A kind of method for forging and molding of carbon nanotube enhanced aluminium-based composite material
CN109570417A (en) * 2018-11-23 2019-04-05 哈尔滨工业大学 A kind of accurate forming method of aluminium alloy thin-walled curved surface muscle forging
CN109622840A (en) * 2018-12-11 2019-04-16 陕西宏远航空锻造有限责任公司 A kind of complicated 7075 aluminum alloy casing isothermy die forging methods of the more muscle classes of large size
CN113774296A (en) * 2021-09-08 2021-12-10 中国航发北京航空材料研究院 Preparation process for improving comprehensive performance of aluminum alloy thick plate and forging
CN115608903A (en) * 2022-12-20 2023-01-17 山西恒强电力科技有限公司 Aluminum alloy forging and pressing piece processing device

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Application publication date: 20120502