CN104588990A - Machining process of lower sway arm of automobile - Google Patents
Machining process of lower sway arm of automobile Download PDFInfo
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- CN104588990A CN104588990A CN201410723637.3A CN201410723637A CN104588990A CN 104588990 A CN104588990 A CN 104588990A CN 201410723637 A CN201410723637 A CN 201410723637A CN 104588990 A CN104588990 A CN 104588990A
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- 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
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- 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
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/14—Suspension elements of automobile vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a machining process of a lower sway arm of an automobile. The process includes the first step of forging, the second step of turning, the third step of ultrasonic flaw detection, the fourth step of hardening and tempering, the fifth step of shot blasting, the sixth step of surface pretreatment and the seventh step of surface treatment. The machining process has the advantages that mechanical properties of parts are good, product quality and stability are greatly improved, and production cost is low.
Description
Technical field
The present invention relates to metal material processing technical field, be specifically related to the Lower Sway Arm of Automobile processing technology.
Background technology
Automobile swing arm is guiding and the support of suspension, and its distortion will affect the location of wheel, reduces the stability of driving, the quality of the quality of an automobile swing arm, has important impact to the stability of driving.In the production process of swing arm, sometimes to the misoperation of workpiece or the quality of workpiece own undesirable, use the swing arm that such workpiece is produced, quality is inherently undesirable, also occupy operation resource, therefore can reduce the yield rate of product, affect the production efficiency of product.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of the Lower Sway Arm of Automobile processing technology, and it can effectively improve the quality of products, and saves production cost.
Technical problem to be solved by this invention realizes by the following technical solutions:
The Lower Sway Arm of Automobile processing technology, it comprises following procedure of processing:
1) forge;
Steel blank raw material applies pressure through metal forming machinery to metal stock, makes it produce plastic deformation, to obtain the forging with certain mechanical performance, definite shape and size;
2) Vehicle Processing;
The workpiece forged, by the processing of the equipment such as Digit Control Machine Tool, multi-position disc machine, carries out roughing and fine finishining to it;
3) ultrasonic examination;
Ultrasonic energy is utilized to penetrate the depths of metal material, and when entering another cross section by a cross section, a kind of method of part defect is checked in the feature of interface edge generation reflection, when ultrasonic beam passes to metal inside from piece surface by probe, just back wave is there is respectively when running into defect and part bottom surface, fluorescent screen forms impulse waveform, judges defective locations and size according to these impulse waveforms.
4) modified;
Undamaged workpiece will be crossed with ultrasonic examination, adopt the mode of direct electro heating, change the physics solidity of workpiece, meet product rigidity requirement, under nitrogen atmosphere protection, at 880-920 DEG C, be incubated 6-7.5 hour, cool to less than 450 DEG C subsequently with the furnace and come out of the stove;
5) Shot Blasting;
Workpiece is sent in shot-blasting machine and carry out shotblasting process 15 ~ 30 minutes with the pill that diameter is 0.6-1.0mm, surface of the work burr etc. is polished smooth, is beneficial to sequent surface process;
6) surface pretreatment;
Process conditions comprise the following steps successively: be 60 ~ 75 DEG C in temperature, and pH value is clean 8 ~ 15 minutes in the low alkalinity degreasing agent of 9 ~ 12, and carry out ungrease treatment to workpiece, it uses Boiler Steam indirect; Adopt the mode of backwash after degreasing, use running water cleaning twice; Working concentration is the hydrochloric acid of 18% at normal temperatures, and adds appropriate acid fog inhibitor and carry out pickling to workpiece, goes out the rusty stain of surface of the work; The same mode adopting backwash after pickling, uses running water cleaning twice; Re-use weakly alkaline colloid phosphoeptide salt pair metalwork surface to process, make colloid phosphoeptide salt particle be adsorbed on surface of the work, form numerous active site and provide nucleus for phosphatization crystal produces, can make to be accelerated into mould reaction; Workpiece is placed in and free acidity is housed and total acidity ratio is 1:(20 ~ 30) solution Phosphating Slot in, carry out phosphatization 12 ~ 40 minutes 10 ~ 40 DEG C of normal (low) temperature; Finally clean once with running water again;
7) surface treatment.
Process conditions comprise the following steps successively: by after the workpiece pure water spray of surface pretreatment, to put into electrophoresis liquid be that water paint carries out electrophoresis, electrophoresis terminates again to spray with pure water, finally the workpiece after spray is sent in curing oven and carry out baking and curing process, use natural gas combustion heat supplying, temperature is 180 ~ 200 DEG C, hardening time is 25 ~ 40 minutes, is finished product after terminating.
The invention has the beneficial effects as follows: the present invention is reasonable in design, adopt production technology of the present invention to carry out the production of lower swing arm, production technology can be made more perfect, stock utilization is high, and yield rate is high, and part mechanical property is good, and production cost is low, there is huge social benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
Embodiment 1
The Lower Sway Arm of Automobile processing technology, as described in Figure 1, it comprises in technological process: forging, Vehicle Processing, ultrasonic examination, modified, Shot Blasting, surface pretreatment, surface treatment, specifically comprise the following steps:
1) forge;
Steel blank raw material applies pressure through metal forming machinery to metal stock, makes it produce plastic deformation, to obtain the forging with certain mechanical performance, definite shape and size;
2) Vehicle Processing;
The workpiece forged, by the processing of the equipment such as Digit Control Machine Tool, multi-position disc machine, carries out roughing and fine finishining to it;
3) ultrasonic examination;
Ultrasonic energy is utilized to penetrate the depths of metal material, and when entering another cross section by a cross section, a kind of method of part defect is checked in the feature of interface edge generation reflection, when ultrasonic beam passes to metal inside from piece surface by probe, just back wave is there is respectively when running into defect and part bottom surface, fluorescent screen forms impulse waveform, judges defective locations and size according to these impulse waveforms.
4) modified;
Undamaged workpiece will be crossed with ultrasonic examination, adopt the mode of direct electro heating, and change the physics solidity of workpiece, meet product rigidity requirement, and under nitrogen atmosphere protection, at 880 DEG C, be incubated 7.5 hours, cool to less than 450 DEG C subsequently with the furnace and come out of the stove;
5) Shot Blasting;
Workpiece is sent in shot-blasting machine and carry out shotblasting process 15 minutes with the pill that diameter is 0.6-1.0mm, surface of the work burr etc. is polished smooth, is beneficial to sequent surface process;
6) surface pretreatment;
Process conditions comprise the following steps successively: be 60 DEG C in temperature, and pH value is clean 15 minutes in the low alkalinity degreasing agent of 9, and carry out ungrease treatment to workpiece, it uses Boiler Steam indirect; Adopt the mode of backwash after degreasing, use running water cleaning twice; Working concentration is the hydrochloric acid of 18% at normal temperatures, and adds appropriate acid fog inhibitor and carry out pickling to workpiece, goes out the rusty stain of surface of the work; The same mode adopting backwash after pickling, uses running water cleaning twice; Re-use weakly alkaline colloid phosphoeptide salt pair metalwork surface to process, make colloid phosphoeptide salt particle be adsorbed on surface of the work, form numerous active site and provide nucleus for phosphatization crystal produces, can make to be accelerated into mould reaction; Workpiece is placed in and free acidity is housed and total acidity ratio is 1:(20 ~ 30) solution Phosphating Slot in, carry out phosphatization 40 minutes at 10 DEG C of low temperature; Finally clean once with running water again;
7) surface treatment.
Process conditions comprise the following steps successively: by after the workpiece pure water spray of surface pretreatment, to put into electrophoresis liquid be that water paint carries out electrophoresis, electrophoresis terminates again to spray with pure water, finally the workpiece after spray is sent in curing oven and carry out baking and curing process, use natural gas combustion heat supplying, temperature is 180 DEG C, hardening time is 40 minutes, is finished product after terminating.
Adopt the lower swing arm that above-mentioned technique prepares, its mechanical property is good, and product stability, intensity improve greatly, and production efficiency is high, and production cost is low, has huge social benefit.
Embodiment 2
The Lower Sway Arm of Automobile processing technology, as described in Figure 1, it comprises in technological process: forging, Vehicle Processing, ultrasonic examination, modified, Shot Blasting, surface pretreatment, surface treatment, specifically comprise the following steps:
1) forge;
Steel blank raw material applies pressure through metal forming machinery to metal stock, makes it produce plastic deformation, to obtain the forging with certain mechanical performance, definite shape and size;
2) Vehicle Processing;
The workpiece forged, by the processing of the equipment such as Digit Control Machine Tool, multi-position disc machine, carries out roughing and fine finishining to it;
3) ultrasonic examination;
Ultrasonic energy is utilized to penetrate the depths of metal material, and when entering another cross section by a cross section, a kind of method of part defect is checked in the feature of interface edge generation reflection, when ultrasonic beam passes to metal inside from piece surface by probe, just back wave is there is respectively when running into defect and part bottom surface, fluorescent screen forms impulse waveform, judges defective locations and size according to these impulse waveforms.
4) modified;
Undamaged workpiece will be crossed with ultrasonic examination, adopt the mode of direct electro heating, and change the physics solidity of workpiece, meet product rigidity requirement, and under nitrogen atmosphere protection, at 900 DEG C, be incubated 7 hours, cool to less than 450 DEG C subsequently with the furnace and come out of the stove;
5) Shot Blasting;
Workpiece is sent in shot-blasting machine and carry out shotblasting process 23 minutes with the pill that diameter is 0.6-1.0mm, surface of the work burr etc. is polished smooth, is beneficial to sequent surface process;
6) surface pretreatment;
Process conditions comprise the following steps successively: be 67 DEG C in temperature, and pH value is clean 11 minutes in the low alkalinity degreasing agent of 10, and carry out ungrease treatment to workpiece, it uses Boiler Steam indirect; Adopt the mode of backwash after degreasing, use running water cleaning twice; Working concentration is the hydrochloric acid of 18% at normal temperatures, and adds appropriate acid fog inhibitor and carry out pickling to workpiece, goes out the rusty stain of surface of the work; The same mode adopting backwash after pickling, uses running water cleaning twice; Re-use weakly alkaline colloid phosphoeptide salt pair metalwork surface to process, make colloid phosphoeptide salt particle be adsorbed on surface of the work, form numerous active site and provide nucleus for phosphatization crystal produces, can make to be accelerated into mould reaction; Workpiece is placed in and free acidity is housed and total acidity ratio is 1:(20 ~ 30) solution Phosphating Slot in, carry out phosphatization 26 minutes 25 DEG C of normal (low) temperature; Finally clean once with running water again;
7) surface treatment.
Process conditions comprise the following steps successively: by after the workpiece pure water spray of surface pretreatment, to put into electrophoresis liquid be that water paint carries out electrophoresis, electrophoresis terminates again to spray with pure water, finally the workpiece after spray is sent in curing oven and carry out baking and curing process, use natural gas combustion heat supplying, temperature is 190 DEG C, hardening time is 32 minutes, is finished product after terminating.
Adopt the lower swing arm that above-mentioned technique prepares, its mechanical property is good, and product stability, intensity improve greatly, and production efficiency is high, and production cost is low, has huge social benefit.
Embodiment 3
The Lower Sway Arm of Automobile processing technology, as described in Figure 1, it comprises in technological process: forging, Vehicle Processing, ultrasonic examination, modified, Shot Blasting, surface pretreatment, surface treatment, specifically comprise the following steps:
1) forge;
Steel blank raw material applies pressure through metal forming machinery to metal stock, makes it produce plastic deformation, to obtain the forging with certain mechanical performance, definite shape and size;
2) Vehicle Processing;
The workpiece forged, by the processing of the equipment such as Digit Control Machine Tool, multi-position disc machine, carries out roughing and fine finishining to it;
3) ultrasonic examination;
Ultrasonic energy is utilized to penetrate the depths of metal material, and when entering another cross section by a cross section, a kind of method of part defect is checked in the feature of interface edge generation reflection, when ultrasonic beam passes to metal inside from piece surface by probe, just back wave is there is respectively when running into defect and part bottom surface, fluorescent screen forms impulse waveform, judges defective locations and size according to these impulse waveforms.
4) modified;
Undamaged workpiece will be crossed with ultrasonic examination, adopt the mode of direct electro heating, and change the physics solidity of workpiece, meet product rigidity requirement, and under nitrogen atmosphere protection, at 920 DEG C, be incubated 6 hours, cool to less than 450 DEG C subsequently with the furnace and come out of the stove;
5) Shot Blasting;
Workpiece is sent in shot-blasting machine and carry out shotblasting process 30 minutes with the pill that diameter is 0.6-1.0mm, surface of the work burr etc. is polished smooth, is beneficial to sequent surface process;
6) surface pretreatment;
Process conditions comprise the following steps successively: be 75 DEG C in temperature, and pH value is clean 8 minutes in the low alkalinity degreasing agent of 12, and carry out ungrease treatment to workpiece, it uses Boiler Steam indirect; Adopt the mode of backwash after degreasing, use running water cleaning twice; Working concentration is the hydrochloric acid of 18% at normal temperatures, and adds appropriate acid fog inhibitor and carry out pickling to workpiece, goes out the rusty stain of surface of the work; The same mode adopting backwash after pickling, uses running water cleaning twice; Re-use weakly alkaline colloid phosphoeptide salt pair metalwork surface to process, make colloid phosphoeptide salt particle be adsorbed on surface of the work, form numerous active site and provide nucleus for phosphatization crystal produces, can make to be accelerated into mould reaction; Workpiece is placed in and free acidity is housed and total acidity ratio is 1:(20 ~ 30) solution Phosphating Slot in, carry out phosphatization 12 minutes at 40 DEG C of normal temperature; Finally clean once with running water again;
7) surface treatment.
Process conditions comprise the following steps successively: by after the workpiece pure water spray of surface pretreatment, to put into electrophoresis liquid be that water paint carries out electrophoresis, electrophoresis terminates again to spray with pure water, finally the workpiece after spray is sent in curing oven and carry out baking and curing process, use natural gas combustion heat supplying, temperature is 200 DEG C, hardening time is 25 minutes, is finished product after terminating.
Adopt the lower swing arm that above-mentioned technique prepares, its mechanical property is good, and product stability, intensity improve greatly, and production efficiency is high, and production cost is low, has huge social benefit.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. the Lower Sway Arm of Automobile processing technology, is characterized in that: it comprises following procedure of processing:
1) forge: steel blank raw material applies pressure through metal forming machinery to metal stock, makes it produce plastic deformation, to obtain the forging with certain mechanical performance, definite shape and size;
2) Vehicle Processing: the workpiece forged, by the processing of the equipment such as Digit Control Machine Tool, multi-position disc machine, carries out roughing and fine finishining to it;
3) ultrasonic examination;
4) modified: undamaged workpiece will to be crossed with ultrasonic examination, adopt the mode of direct electro heating, change the physics solidity of workpiece, meet product rigidity requirement;
5) Shot Blasting: workpiece is sent in shot-blasting machine and carry out shotblasting process;
6) surface pretreatment;
7) surface treatment.
2. automobile swing arm processing technology according to claim 1, is characterized in that: in step 4) to the process conditions that workpiece is modified be: under nitrogen atmosphere protection, be incubated 6-7.5 hour, cool to less than 450 DEG C subsequently with the furnace and come out of the stove at 880-920 DEG C.
3. automobile swing arm processing technology according to claim 1, is characterized in that: in step 5) to the process conditions that workpiece carries out ball blast be: the pill process 15 ~ 30 minutes with diameter being 0.6-1.0mm, makes surface of the work burr etc. be polished smooth.
4. automobile swing arm processing technology according to claim 1, it is characterized in that: in step 6), the process conditions that workpiece carries out surface pretreatment are comprised the following steps successively: be 60 ~ 75 DEG C in temperature, pH value is clean 8 ~ 15 minutes in the low alkalinity degreasing agent of 9 ~ 12, carry out ungrease treatment to workpiece, it uses Boiler Steam indirect; Adopt the mode of backwash after degreasing, use running water cleaning twice; Working concentration is the hydrochloric acid of 18% at normal temperatures, and adds appropriate acid fog inhibitor and carry out pickling to workpiece, goes out the rusty stain of surface of the work; The same mode adopting backwash after pickling, uses running water cleaning twice; Re-use weakly alkaline colloid phosphoeptide salt pair metalwork surface to process, make colloid phosphoeptide salt particle be adsorbed on surface of the work, form numerous active site and provide nucleus for phosphatization crystal produces, can make to be accelerated into mould reaction; Workpiece is placed in and free acidity is housed and total acidity ratio is 1:(20 ~ 30) solution Phosphating Slot in, carry out phosphatization 12 ~ 40 minutes 10 ~ 40 DEG C of normal (low) temperature; Finally clean once with running water again.
5. automobile swing arm processing technology according to claim 1, it is characterized in that: in step 7), surface-treated process conditions are carried out to workpiece and comprise the following steps successively: by after the workpiece pure water spray of surface pretreatment, to put into electrophoresis liquid be that water paint carries out electrophoresis, electrophoresis terminates again to spray with pure water, finally the workpiece after spray is sent in curing oven and carry out baking and curing process, use natural gas combustion heat supplying, temperature is 180 ~ 200 DEG C, hardening time is 25 ~ 40 minutes, is finished product after terminating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723637.3A CN104588990A (en) | 2014-12-04 | 2014-12-04 | Machining process of lower sway arm of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723637.3A CN104588990A (en) | 2014-12-04 | 2014-12-04 | Machining process of lower sway arm of automobile |
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| Publication Number | Publication Date |
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| CN104588990A true CN104588990A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410723637.3A Pending CN104588990A (en) | 2014-12-04 | 2014-12-04 | Machining process of lower sway arm of automobile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238381A (en) * | 2016-08-23 | 2016-12-21 | 蚌埠精科机床制造有限公司 | A kind of pre-treating method of machine tool component sanding and polishing processing |
| CN111889979A (en) * | 2020-08-03 | 2020-11-06 | 湖北军威机械有限公司 | Processing technology of transition swing arm of heavy-duty car steering device system |
| CN114833529A (en) * | 2022-04-14 | 2022-08-02 | 力野精密工业（深圳）有限公司 | Production process of automobile control arm |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070228684A1 (en) * | 2006-03-31 | 2007-10-04 | Bowers Lee N | Suspension arm for a vehicle |
| CN101559555A (en) * | 2009-05-19 | 2009-10-21 | 重庆长征重工有限责任公司 | Forging method of coupler knuckle for railway vehicle |
| JP2010234439A (en) * | 2009-03-31 | 2010-10-21 | Kobe Steel Ltd | Forging mold device and method of manufacturing forging stock |
| CN103302226A (en) * | 2012-03-16 | 2013-09-18 | 上海瑞尔实业有限公司 | Precise forging process for front upper arm part of car chassis suspension system |
| CN103978342A (en) * | 2014-04-08 | 2014-08-13 | 南阳二机石油装备(集团)有限公司 | Manufacturing method of hook body of large hook for polar region drilling machine |
-
2014
- 2014-12-04 CN CN201410723637.3A patent/CN104588990A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070228684A1 (en) * | 2006-03-31 | 2007-10-04 | Bowers Lee N | Suspension arm for a vehicle |
| JP2010234439A (en) * | 2009-03-31 | 2010-10-21 | Kobe Steel Ltd | Forging mold device and method of manufacturing forging stock |
| CN101559555A (en) * | 2009-05-19 | 2009-10-21 | 重庆长征重工有限责任公司 | Forging method of coupler knuckle for railway vehicle |
| CN103302226A (en) * | 2012-03-16 | 2013-09-18 | 上海瑞尔实业有限公司 | Precise forging process for front upper arm part of car chassis suspension system |
| CN103978342A (en) * | 2014-04-08 | 2014-08-13 | 南阳二机石油装备(集团)有限公司 | Manufacturing method of hook body of large hook for polar region drilling machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238381A (en) * | 2016-08-23 | 2016-12-21 | 蚌埠精科机床制造有限公司 | A kind of pre-treating method of machine tool component sanding and polishing processing |
| CN111889979A (en) * | 2020-08-03 | 2020-11-06 | 湖北军威机械有限公司 | Processing technology of transition swing arm of heavy-duty car steering device system |
| CN114833529A (en) * | 2022-04-14 | 2022-08-02 | 力野精密工业（深圳）有限公司 | Production process of automobile control arm |
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