CN108213843A - A kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging - Google Patents

A kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging Download PDF

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Publication number
CN108213843A
CN108213843A CN201611154601.3A CN201611154601A CN108213843A CN 108213843 A CN108213843 A CN 108213843A CN 201611154601 A CN201611154601 A CN 201611154601A CN 108213843 A CN108213843 A CN 108213843A
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forging
ring billet
rolling
aluminum alloy
looping mill
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CN201611154601.3A
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Inventor
张华�
杨家典
吴永安
罗鸿飞
王华东
安世豪
官斌
王春梅
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GUIZHOU AVIATION TECHNICAL DEVELOPMENT Co Ltd
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GUIZHOU AVIATION TECHNICAL DEVELOPMENT Co Ltd
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Publication of CN108213843A publication Critical patent/CN108213843A/en
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    • 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

Abstract

The present invention provides a kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging, and including sawing, quenching treatment, jumping-up, punching, saddle support reaming obtain rectangle ring billet;Special-shaped ring billet makes and forging making step.2219 aluminium alloy abnormity rings are produced using this manufacturing method, since forging shape is closer to part, can more keep forging streamline complete, and subsequent allowance is small, the period of processing is short, and stock utilization is high.And ring is complete annulus in itself, and interior tissue is uniform, is not required to be welded, so as to solve the problems, such as the histological difference of plank curling welding and deformation.Simultaneously by increasing quenching and temper, mechanical properties and Brinell hardness are increased.

Description

A kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging
Technical field
The present invention relates to forging production field, especially a kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging.
Background technology
2219 aluminium alloys have the characteristics that specific strength, mechanical properties and Brinell hardness are high, low temperature and high-temperature mechanics Can be good, the features such as anti-stress corrosion performance is good, suitable for structural member, the high-intensity welding part to work at 315 DEG C of high temperature.It is changed Study a point such as following table:
Table 1:The chemical composition of 2219 aluminium alloys
2219 aluminium alloys are widely applied in aerospace industry.2219 aluminum alloy C-shaped section ring parts are boats Common a kind of part type on empty engine, the common production method for 2219 aluminum alloy C-shaped section ring parts are to use Plank curling welding obtains ring or production rectangle ring is machined to obtain special-shaped ring, such production method exist with Lower shortcoming:
1st, the special-shaped ring obtained after being welded by plank, commissure material structure exist with the other regional organizations of part Difference causes part hydraulic performance decline.
2nd, there are welding stresses after welding, and the release of meeting stress generates moderate finite deformation in the process for following process and use, leads Cause product rejection.
If the 3, producing rectangle ring, the material of follow-up mechanical processing cutting removal is more, and the streamline for destroying forging is complete Whole property reduces its specific strength, mechanical properties and Brinell hardness height, and the period processed is longer, and stock utilization is low, It causes to waste, does not meet the requirement of sustainable development.
Invention content
In order to solve the above technical problems existing in the prior art, the present invention provides a kind of 2219 aluminum alloy C-shaped sections Ring forging manufacturing method, includes the following steps:
1) sawing;2219 rodss and bars of aluminium alloy are subjected to sawing by specification;
2) quenching treatment;
3) 2219 rodss and bars of aluminium alloy of quenching treatment are subjected to jumping-up, punching, saddle support reaming acquisition rectangle ring billet;
4) special-shaped ring billet makes, and rectangle ring billet is placed on looping mill, the rotating speed of the home roll mold A of looping mill for 0.2~ 0.4rad/s, core roller carry out looping mill rolling according to following feed speed to rectangle ring billet:Roll bite stage, by feed rate of idle roll by 0mm/s increases to 0.3mm/s, and ring billet is made to bite rolling;The stable rolling stage is rolled, feed rate of idle roll is increased by 0.3mm/s 0.6mm/s is added to, makes ring billet stable rolling, diameter is constantly grown up;School circle, truing phase, by feed rate of idle roll by 0.6mm/s 0.2mm/s is gradually decreased to, make the ovality of ring and is of the required size, obtains special-shaped ring billet;
5) special-shaped ring billet is placed on looping mill by forging, and the rotating speed of the home roll mold B of looping mill is 0.2~0.4rad/s, Finish to gauge core roller carries out looping mill rolling according to following feed speed to special-shaped ring billet:Bite stage is rolled, by feed rate of idle roll by 0mm/s Increase to 0.3mm/s;Ring billet is made to bite rolling;The stable rolling stage is rolled, feed rate of idle roll is increased to by 0.3mm/s 0.6mm/s;Make ring billet stable rolling, diameter is constantly grown up;By core roller, feed speed is gradual by 0.6mm/s for school circle, truing phase 0.2mm/s is reduced to, make the ovality of ring and is of the required size, obtains forging.
Further, the quenching treatment is:2219 good rodss and bars of aluminium alloy of sawing are heated to 440~460 DEG C simultaneously Heat preservation, soaking time are:The effective thickness of bar × (2~4) min/mm, is then cooled to 200 with the rate of 2~5 DEG C/min Below DEG C;
Further, the temperature of the quenching treatment is 450 DEG C, and processing time is that soaking time is:Bar it is effective Then thickness × 2.5min/mm is cooled to less than 200 DEG C with the rate of 3 DEG C/min.
Further, the jumping-up of the step 3), punching, saddle support reaming temperature are 400~430 DEG C.
Further, the special-shaped ring billet in looping mill rolling into secondary quenching processing is also carried out before forging, specifically, being heated to 470~490 DEG C and keep the temperature, the same Quenching Soaking Time of soaking time, then with the rate of 2~5 DEG C/min be cooled to 200 DEG C with Under.
Further, the finished product forging also passes through temper, specially:First forging is carried out at average tempering Reason, temperature are 260~300 DEG C, and the time is 2~8h;Then forging being subjected to lonneal processing, temperature is 170~200 DEG C, Time is 5~10h.
The present invention technique effect be:2219 aluminium alloy abnormity rings are produced using this manufacturing method, due to forging shape Closer to part, it can more keep forging streamline complete, and subsequent allowance is small, the period of processing is short, and stock utilization is high. And ring is complete annulus in itself, and interior tissue is uniform, is not required to be welded, so as to solve the tissue of plank curling welding The problem of difference and deformation.Simultaneously by increasing quenching and temper, its mechanical properties and Brinell hardness are increased.
Description of the drawings
Fig. 1 is the structure diagram before the special-shaped ring billet cerclage of the present invention.
Fig. 2 is the structure diagram in the special-shaped ring billet cerclage of the present invention.
Fig. 3 is the structure diagram before forging cerclage of the present invention.
Fig. 4 is the structure diagram in forging cerclage of the present invention.
In figure:1- rectangle ring billets, 2- core rollers, 3- home roll mold A, 4- abnormity ring billets, 5- home roll molds.
Specific embodiment
It is limited technical scheme of the present invention is further, but is required with specific embodiment below in conjunction with the accompanying drawings The range of protection is not only limited to made description.
Embodiment one
A kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging are present embodiments provided, are included the following steps:
1) sawing;2219 rodss and bars of aluminium alloy are subjected to sawing by specification;
2) 2219 good rodss and bars of aluminium alloy of sawing are heated to 440~460 DEG C and kept the temperature by quenching treatment, and soaking time is: The effective thickness of bar × (2~4) min/mm, is then cooled to less than 200 DEG C with the rate of 2~5 DEG C/min;The present embodiment is excellent It is 450 DEG C to select heating temperature, and processing time is that soaking time is:Effective thickness × 2.5min/mm of bar, then with 3 DEG C/ The rate of min is cooled to less than 200 DEG C;
3) 2219 rodss and bars of aluminium alloy of quenching treatment are subjected to jumping-up, punching, saddle support reaming acquisition rectangle ring billet 1, entirely The temperature of process is 400~430 DEG C;The present embodiment is preferably 420 DEG C;
4) special-shaped ring billet makes, and as depicted in figs. 1 and 2, rectangle ring billet is placed on looping mill, the home roll mold of looping mill The rotating speed of A3 is 0.2~0.4rad/s, and core roller 2 carries out looping mill rolling according to following feed speed to rectangle ring billet:Roll bite stage, 2 feed speed of core roller is increased into 0.3mm/s by 0mm/s, ring billet is made to bite rolling;Roll the stable rolling stage by core roller 2 into 0.6mm/s is increased to by 0.3mm/s to speed, makes ring billet stable rolling, diameter is constantly grown up;School circle, truing phase are by core roller 2 Feed speed gradually decreases to 0.2mm/s by 0.6mm/s, makes the ovality of ring and is of the required size, and obtains special-shaped ring billet 4;
5) as shown in Figure 3 and Figure 4, special-shaped ring billet 4 is placed on looping mill for forging, and the home roll mold B5's of looping mill turns Speed is 0.2~0.4rad/s, and finish to gauge core roller 2 carries out looping mill rolling according to following feed speed to special-shaped ring billet:Bite stage is rolled, it will 2 feed speed of core roller increases to 0.3mm/s by 0mm/s;Ring billet is made to bite rolling;The stable rolling stage is rolled, core roller 2 is fed Speed increases to 0.6mm/s by 0.3mm/s;Make ring billet stable rolling, diameter is constantly grown up;School circle, truing phase by core roller 2 into 0.2mm/s is gradually decreased to by 0.6mm/s to speed, make the ovality of ring and is of the required size, obtains forging.
Embodiment two
A kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging are present embodiments provided, are included the following steps:
1) sawing;2219 rodss and bars of aluminium alloy are subjected to sawing by specification;
2) 2219 good rodss and bars of aluminium alloy of sawing are heated to 440~460 DEG C and kept the temperature by quenching treatment, and soaking time is: The effective thickness of bar × (2~4) min/mm, is then cooled to less than 200 DEG C with the rate of 2~5 DEG C/min;The present embodiment is excellent It is 450 DEG C to select heating temperature, and processing time is that soaking time is:Effective thickness × 2.5min/mm of bar, then with 3 DEG C/ The rate of min is cooled to less than 200 DEG C;
3) 2219 rodss and bars of aluminium alloy of quenching treatment are subjected to jumping-up, punching, saddle support reaming acquisition rectangle ring billet 1, entirely The temperature of process is 400~430 DEG C;The present embodiment is preferably 420 DEG C;
4) special-shaped ring billet makes, and as depicted in figs. 1 and 2, rectangle ring billet is placed on looping mill, the home roll mold of looping mill The rotating speed of A3 is 0.2~0.4rad/s, and core roller 2 carries out looping mill rolling according to following feed speed to rectangle ring billet:Roll bite stage, 2 feed speed of core roller is increased into 0.3mm/s by 0mm/s, ring billet is made to bite rolling;Roll the stable rolling stage by core roller 2 into 0.6mm/s is increased to by 0.3mm/s to speed, makes ring billet stable rolling, diameter is constantly grown up;School circle, truing phase are by core roller 2 Feed speed gradually decreases to 0.2mm/s by 0.6mm/s, makes the ovality of ring and is of the required size, and obtains special-shaped ring billet 4;
5) secondary quenching is handled, specifically, special-shaped ring billet 4 is heated to 470~490 DEG C and is kept the temperature, soaking time is same to quench Then fiery soaking time is cooled to less than 200 DEG C with the rate of 2~5 DEG C/min;The present embodiment is preferably with the speed of 3 DEG C/min Rate is cooled to less than 200 DEG C;
6) as shown in Figure 3 and Figure 4, special-shaped ring billet 4 is placed on looping mill for forging, and the home roll mold B5's of looping mill turns Speed is 0.2~0.4rad/s, and finish to gauge core roller 2 carries out looping mill rolling according to following feed speed to special-shaped ring billet:Bite stage is rolled, it will 2 feed speed of core roller increases to 0.3mm/s by 0mm/s;Ring billet is made to bite rolling;The stable rolling stage is rolled, core roller 2 is fed Speed increases to 0.6mm/s by 0.3mm/s;Make ring billet stable rolling, diameter is constantly grown up;School circle, truing phase by core roller 2 into 0.2mm/s is gradually decreased to by 0.6mm/s to speed, make the ovality of ring and is of the required size, obtains forging.
Embodiment three
A kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging are present embodiments provided, are included the following steps:
1) sawing;2219 rodss and bars of aluminium alloy are subjected to sawing by specification;
2) 2219 good rodss and bars of aluminium alloy of sawing are heated to 440~460 DEG C and kept the temperature by quenching treatment, and soaking time is: The effective thickness of bar × (2~4) min/mm, is then cooled to less than 200 DEG C with the rate of 2~5 DEG C/min;The present embodiment is excellent It is 450 DEG C to select heating temperature, and processing time is that soaking time is:Effective thickness × 2.5min/mm of bar, then with 3 DEG C/ The rate of min is cooled to less than 200 DEG C;
3) 2219 rodss and bars of aluminium alloy of quenching treatment are subjected to jumping-up, punching, saddle support reaming acquisition rectangle ring billet 1, entirely The temperature of process is 400~430 DEG C;The present embodiment is preferably 420 DEG C;
4) special-shaped ring billet makes, and as depicted in figs. 1 and 2, rectangle ring billet is placed on looping mill, the home roll mold of looping mill The rotating speed of A3 is 0.2~0.4rad/s, and core roller 2 carries out looping mill rolling according to following feed speed to rectangle ring billet:Roll bite stage, 2 feed speed of core roller is increased into 0.3mm/s by 0mm/s, ring billet is made to bite rolling;Roll the stable rolling stage by core roller 2 into 0.6mm/s is increased to by 0.3mm/s to speed, makes ring billet stable rolling, diameter is constantly grown up;School circle, truing phase are by core roller 2 Feed speed gradually decreases to 0.2mm/s by 0.6mm/s, makes the ovality of ring and is of the required size, and obtains special-shaped ring billet 4;
5) as shown in Figure 3 and Figure 4, special-shaped ring billet 4 is placed on looping mill for forging, and the home roll mold B5's of looping mill turns Speed is 0.2~0.4rad/s, and finish to gauge core roller 2 carries out looping mill rolling according to following feed speed to special-shaped ring billet:Bite stage is rolled, it will 2 feed speed of core roller increases to 0.3mm/s by 0mm/s;Ring billet is made to bite rolling;The stable rolling stage is rolled, core roller 2 is fed Speed increases to 0.6mm/s by 0.3mm/s;Make ring billet stable rolling, diameter is constantly grown up;School circle, truing phase by core roller 2 into 0.2mm/s is gradually decreased to by 0.6mm/s to speed, make the ovality of ring and is of the required size, obtains forging;
6) forging is first carried out average tempering processing by temper, and temperature is 260~300 DEG C, and the time is 2~8h;Then Forging is subjected to lonneal processing, temperature is 170~200 DEG C, and the time is 5~10h.
Example IV
A kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging are present embodiments provided, are included the following steps:
1) sawing;2219 rodss and bars of aluminium alloy are subjected to sawing by specification;
2) 2219 good rodss and bars of aluminium alloy of sawing are heated to 440~460 DEG C and kept the temperature by quenching treatment, and soaking time is: The effective thickness of bar × (2~4) min/mm, is then cooled to less than 200 DEG C with the rate of 2~5 DEG C/min;The present embodiment is excellent It is 450 DEG C to select heating temperature, and processing time is that soaking time is:Effective thickness × 2.5min/mm of bar, then with 3 DEG C/ The rate of min is cooled to less than 200 DEG C;
3) 2219 rodss and bars of aluminium alloy of quenching treatment are subjected to jumping-up, punching, saddle support reaming acquisition rectangle ring billet 1, entirely The temperature of process is 400~430 DEG C;The present embodiment is preferably 420 DEG C;
4) special-shaped ring billet makes, and as depicted in figs. 1 and 2, rectangle ring billet is placed on looping mill, the home roll mold of looping mill The rotating speed of A3 is 0.2~0.4rad/s, and core roller 2 carries out looping mill rolling according to following feed speed to rectangle ring billet:Roll bite stage, 2 feed speed of core roller is increased into 0.3mm/s by 0mm/s, ring billet is made to bite rolling;Roll the stable rolling stage by core roller 2 into 0.6mm/s is increased to by 0.3mm/s to speed, makes ring billet stable rolling, diameter is constantly grown up;School circle, truing phase are by core roller 2 Feed speed gradually decreases to 0.2mm/s by 0.6mm/s, makes the ovality of ring and is of the required size, and obtains special-shaped ring billet 4;
5) secondary quenching is handled, specifically, special-shaped ring billet 4 is heated to 470~490 DEG C and is kept the temperature, soaking time is same to quench Then fiery soaking time is cooled to less than 200 DEG C with the rate of 2~5 DEG C/min;The present embodiment is preferably with the speed of 3 DEG C/min Rate is cooled to less than 200 DEG C;
6) as shown in Figure 3 and Figure 4, special-shaped ring billet 4 is placed on looping mill for forging, and the home roll mold B5's of looping mill turns Speed is 0.2~0.4rad/s, and finish to gauge core roller 2 carries out looping mill rolling according to following feed speed to special-shaped ring billet:Bite stage is rolled, it will 2 feed speed of core roller increases to 0.3mm/s by 0mm/s;Ring billet is made to bite rolling;The stable rolling stage is rolled, core roller 2 is fed Speed increases to 0.6mm/s by 0.3mm/s;Make ring billet stable rolling, diameter is constantly grown up;School circle, truing phase by core roller 2 into 0.2mm/s is gradually decreased to by 0.6mm/s to speed, make the ovality of ring and is of the required size, obtains forging;
7) forging is first carried out average tempering processing by temper, and temperature is 260~300 DEG C, and the time is 2~8h;Then Forging is subjected to lonneal processing, temperature is 170~200 DEG C, and the time is 5~10h.
The present embodiment is also detected the forging mechanical property of above-mentioned four embodiment.Table 2 and table 3 specific as follows, as a result Show that mechanical properties and the Brinell hardness of the forging are high.
Table 2:Mechanical index A1
Table 3:Mechanical index A2

Claims (6)

1. a kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging, which is characterized in that include the following steps:
1) sawing;2219 rodss and bars of aluminium alloy are subjected to sawing by specification;
2) quenching treatment;
3) 2219 rodss and bars of aluminium alloy of quenching treatment are subjected to jumping-up, punching, saddle support reaming acquisition rectangle ring billet;
4) special-shaped ring billet makes, and rectangle ring billet is placed on looping mill, the rotating speed of the home roll mold A of looping mill for 0.2~ 0.4rad/s, core roller carry out looping mill rolling according to following feed speed to rectangle ring billet:Roll bite stage, by feed rate of idle roll by 0mm/s increases to 0.3mm/s, and ring billet is made to bite rolling;The stable rolling stage is rolled, feed rate of idle roll is increased by 0.3mm/s 0.6mm/s is added to, makes ring billet stable rolling, diameter is constantly grown up;School circle, truing phase, by feed rate of idle roll by 0.6mm/s 0.2mm/s is gradually decreased to, make the ovality of ring and is of the required size, obtains special-shaped ring billet;
5) special-shaped ring billet is placed on looping mill by forging, and the rotating speed of the home roll mold B of looping mill is 0.2~0.4rad/s, finish to gauge Core roller carries out looping mill rolling according to following feed speed to special-shaped ring billet:Bite stage is rolled, feed rate of idle roll is increased by 0mm/s To 0.3mm/s;Ring billet is made to bite rolling;The stable rolling stage is rolled, feed rate of idle roll is increased into 0.6mm/ by 0.3mm/s s;Make ring billet stable rolling, diameter is constantly grown up;By core roller, feed speed is gradually decreased to by 0.6mm/s for school circle, truing phase 0.2mm/s makes the ovality of ring and is of the required size, obtains forging.
2. 2219 aluminum alloy C-shaped section rings process for manufacturing forging as described in claim 1, it is characterised in that:The quenching It handles and is:2219 good rodss and bars of aluminium alloy of sawing are heated to 440~460 DEG C and are kept the temperature, soaking time is:Effective thickness of bar Degree × (2~4) min/mm, is then cooled to less than 200 DEG C with the rate of 2~5 DEG C/min.
3. 2219 aluminum alloy C-shaped section rings process for manufacturing forging as claimed in claim 2, it is characterised in that:The quenching The temperature of processing is 450 DEG C, and processing time is that soaking time is:Effective thickness × 2.5min/mm of bar, then with 3 DEG C/ The rate of min is cooled to less than 200 DEG C.
4. 2219 aluminum alloy C-shaped section rings process for manufacturing forging as described in claim 1, it is characterised in that:The step 3) jumping-up, punching, saddle support reaming temperature are 400~430 DEG C.
5. 2219 aluminum alloy C-shaped section rings process for manufacturing forging as described in claim 1, it is characterised in that:The abnormity Ring billet is in looping mill rolling into secondary quenching processing is also carried out before forging, specifically, being heated to 470~490 DEG C and keeping the temperature, soaking time is same Then Quenching Soaking Time is cooled to less than 200 DEG C with the rate of 2~5 DEG C/min.
6. 2219 aluminum alloy C-shaped section rings process for manufacturing forging as described in claim 1, it is characterised in that:The finished product Forging also passes through temper, specially:Forging is first subjected to average tempering processing, temperature is 260~300 DEG C, the time for 2~ 8h;Then forging is subjected to lonneal processing, temperature is 170~200 DEG C, and the time is 5~10h.
CN201611154601.3A 2016-12-14 2016-12-14 A kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging Pending CN108213843A (en)

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CN109482804A (en) * 2018-12-27 2019-03-19 贵州航宇科技发展股份有限公司 A kind of blanking mold and blank-making method for C font section annular forging piece
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CN112756917A (en) * 2020-12-31 2021-05-07 安徽砼宇特构科技有限公司 Production process of stainless steel bushing ring

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CN109822021A (en) * 2018-09-10 2019-05-31 贵州航天新力铸锻有限责任公司 Rolloff forming method of C-shaped section forging
CN109482804A (en) * 2018-12-27 2019-03-19 贵州航宇科技发展股份有限公司 A kind of blanking mold and blank-making method for C font section annular forging piece
CN111474025A (en) * 2020-04-27 2020-07-31 马鞍山钢铁股份有限公司 Preparation method of wheel steel spectral analysis standard sample
CN112756917A (en) * 2020-12-31 2021-05-07 安徽砼宇特构科技有限公司 Production process of stainless steel bushing ring

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Application publication date: 20180629