CN105563018A - Machining method of DCMP aluminium alloy vacuum soldering machine case - Google Patents
Machining method of DCMP aluminium alloy vacuum soldering machine case Download PDFInfo
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- CN105563018A CN105563018A CN201510761520.9A CN201510761520A CN105563018A CN 105563018 A CN105563018 A CN 105563018A CN 201510761520 A CN201510761520 A CN 201510761520A CN 105563018 A CN105563018 A CN 105563018A
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- soldering
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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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- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to the field of machining, in particular to a machining method of a DCMP aluminium alloy vacuum soldering machine case. The method comprises the following steps: blanking, wherein a workblank material is selected, and enough machining allowance is reserved; thermal treatment; rough machining, wherein a finishing allowance of 0.5mm needs to be reserved between soldering fitting surfaces of left and right side plates and a rear side plate and a front frame, a finishing allowance of 0.5mm is reserved between the soldering fitting surfaces of the left and right side plates and cooling fins, and the rear side plate and the front frame are clamped and machined together according to a ganged manner in finish machining by respectively reserving a finishing allowance of 0.5mm at a single side in the length direction; finish machining; preparation before soldering; soldering; turning after soldering; removing redundant soldering material after welding; milling to remove technical allowance and technical bosses on a workpiece; drilling according to requirements; and carrying out surface treatment on the surface of the workpiece.
Description
Technical field
The present invention relates to field of machining, be specifically related to DCMP Aluminum Alloy Vacuum Brazing cabinet processing method.
Background technology
Aluminium alloy is a most widely used class non-ferrous metal structural material in industry, widely applies in Aeronautics and Astronautics, automobile, boats and ships, machine-building and chemical industry.Along with science and technology and the develop rapidly of industrial economy in recent years, increasing to the demand of Welded structural member, make the Research on Weldability of aluminium alloy also thereupon deeply.The extensive use of aluminium alloy facilitates the development of aluminum alloy solder technology, and the development of solder technology has simultaneously expanded again the application of aluminium alloy, the therefore solder technology of aluminium alloy just one of focus becoming research.
The processing of DCMP Aluminum Alloy Vacuum Brazing cabinet, due to this cabinet particular/special requirement and required precision, in process, there is larger difficulty of processing, working (machining) efficiency is low.
Summary of the invention
In order to solve the problem, the invention provides a kind of process simple, be easy to manufacture, and ensure crudy and the dimensional accuracy of workpiece, reduce production cost, the DCMP Aluminum Alloy Vacuum Brazing cabinet processing method of enhancing productivity.
DCMP Aluminum Alloy Vacuum Brazing cabinet processing method of the present invention, comprises the following steps:
The first step, blanking, selects blank material, and ensures enough allowance;
Second step, heat treatment, annealing in process, object eliminates work hardening, improves machinability, eliminates residual stress, stable dimensions, reduces distortion and be inclined to crackle, crystal grain thinning, and adjustment tissue, eliminates tissue defects, tissue is tended to balance;
3rd step, roughing, the allowance for finish of 0.5mm respectively need stay in left and right side plate and back side panel and front frame soldering mating surface place, also has left and right side plate and radiating fin soldering mating surface to leave the allowance for finish of 0.5mm; Back side panel and front frame the monolateral allowance for finish respectively staying 0.5mm of length direction need in fine finishining time by clamping processing together with method in groups;
4th step, fine finishining, due to a left side, there is spill in upper and lower two faces of right plate, wall is very thin is only 2.3mm, coordinate area also larger with radiating fin soldering, roughing rear left, right plate is easy to cause stress deformation, therefore destressing treatment process should be increased after roughing, part after second time heat treatment, except the process allowance could processed after soldering, outside reinforcement and false boss do not allow to mill, all the other all mill the allowance for finish of 0.5mm by part process requirement, in addition left, the soldering fit clearance of right plate and radiating fin will consider the thickness of weld tabs, coordinate by technological requirement and be machined to the degree of depth,
5th step, trial assembly is joined, after fine finishining completes, each part of cabinet frame carries out trial assembly before brazing and joins, and kit is repaired, in addition must consider with the fastening parts of process screw by composition cabinet frame during trial assembly, to join by technological requirement in place as the case may be and make technique screw, and select M2.5 or M3 process screw that cabinet frame is in addition fastening;
6th step, pricker welds prepares, each part to be welded is needed to carry out strict cleaning before soldering, with cotton ball soaked in alcohol by part brazing contact face wiped clean, the process of solder, generally first uses sand papering to remove surface film oxide, greasy dirt is wiped again with alcohol, reduce photothermal reflectivity, the thermal capacity of frock should be reduced as far as possible under the prerequisite not damaging rigidity, guarantee frock dry cleansing;
7th step, soldering, to the heating of the laggard row three phases of vacuum brazing stove evacuation, is incubated, that is: first stage preheating constant temperature, insulation; Second stage accumulation of energy constant temperature, insulation and phase III soldering constant temperature, insulation; Have a power failure, close fire door, be evacuated to after requiring pressure, be heated to 400 DEG C and be incubated about 45min, delay again and rise to 520 DEG C of insulations, be then warming up to 580 DEG C, be incubated about 30min, when stove district, temperature reaches 600 DEG C, when Part temperature reaches about 590 DEG C, is incubated about 5min, after brazing filler metal melts, stop heating, cabinet frame is lowered the temperature with stove, when being cooled to 200 DEG C, close vacuum system, open intake valve, balance stove inside and outside differential pressure, to be cooledly after less than 60 DEG C, open fire door, take out workpiece, remove fixture;
8th step, postwelding turning, removes workpiece redundant brazing filler metal after welding, mills the process allowance on workpiece and false boss, holes on request, and carries out surface treatment to surface of the work.
Process of the present invention is simple, is easy to manufacture, and ensures crudy and the dimensional accuracy of workpiece, reduces production cost, enhances productivity.
Detailed description of the invention
DCMP Aluminum Alloy Vacuum Brazing cabinet processing method of the present invention, comprises the following steps:
The first step, blanking, selects blank material, and ensures enough allowance;
Second step, heat treatment, annealing in process, object eliminates work hardening, improves machinability, eliminates residual stress, stable dimensions, reduces distortion and be inclined to crackle, crystal grain thinning, and adjustment tissue, eliminates tissue defects, tissue is tended to balance;
3rd step, roughing, the allowance for finish of 0.5mm respectively need stay in left and right side plate and back side panel and front frame soldering mating surface place, also has left and right side plate and radiating fin soldering mating surface to leave the allowance for finish of 0.5mm; Back side panel and front frame the monolateral allowance for finish respectively staying 0.5mm of length direction need in fine finishining time by clamping processing together with method in groups;
4th step, fine finishining, due to a left side, there is spill in upper and lower two faces of right plate, wall is very thin is only 2.3mm, coordinate area also larger with radiating fin soldering, roughing rear left, right plate is easy to cause stress deformation, therefore destressing treatment process should be increased after roughing, part after second time heat treatment, except the process allowance could processed after soldering, outside reinforcement and false boss do not allow to mill, all the other all mill the allowance for finish of 0.5mm by part process requirement, in addition left, the soldering fit clearance of right plate and radiating fin will consider the thickness of weld tabs, coordinate by technological requirement and be machined to the degree of depth,
5th step, trial assembly is joined, after fine finishining completes, each part of cabinet frame carries out trial assembly before brazing and joins, and kit is repaired, in addition must consider with the fastening parts of process screw by composition cabinet frame during trial assembly, to join by technological requirement in place as the case may be and make technique screw, and select M2.5 or M3 process screw that cabinet frame is in addition fastening;
6th step, pricker welds prepares, each part to be welded is needed to carry out strict cleaning before soldering, with cotton ball soaked in alcohol by part brazing contact face wiped clean, the process of solder, generally first uses sand papering to remove surface film oxide, greasy dirt is wiped again with alcohol, reduce photothermal reflectivity, the thermal capacity of frock should be reduced as far as possible under the prerequisite not damaging rigidity, guarantee frock dry cleansing;
7th step, soldering, to the heating of the laggard row three phases of vacuum brazing stove evacuation, is incubated, that is: first stage preheating constant temperature, insulation; Second stage accumulation of energy constant temperature, insulation and phase III soldering constant temperature, insulation; Have a power failure, close fire door, be evacuated to after requiring pressure, be heated to 400 DEG C and be incubated about 45min, delay again and rise to 520 DEG C of insulations, be then warming up to 580 DEG C, be incubated about 30min, when stove district, temperature reaches 600 DEG C, when Part temperature reaches about 590 DEG C, is incubated about 5min, after brazing filler metal melts, stop heating, cabinet frame is lowered the temperature with stove, when being cooled to 200 DEG C, close vacuum system, open intake valve, balance stove inside and outside differential pressure, to be cooledly after less than 60 DEG C, open fire door, take out workpiece, remove fixture;
8th step, postwelding turning, removes workpiece redundant brazing filler metal after welding, mills the process allowance on workpiece and false boss, holes on request, and carries out surface treatment to surface of the work.
Process of the present invention is simple, is easy to manufacture, and ensures crudy and the dimensional accuracy of workpiece, reduces production cost, enhances productivity.
Claims (1)
1. a DCMP Aluminum Alloy Vacuum Brazing cabinet processing method, is characterized in that, comprise the following steps:
The first step, blanking, selects blank material, and ensures enough allowance;
Second step, heat treatment, annealing in process, object eliminates work hardening, improves machinability, eliminates residual stress, stable dimensions, reduces distortion and be inclined to crackle, crystal grain thinning, and adjustment tissue, eliminates tissue defects, tissue is tended to balance;
3rd step, roughing, the allowance for finish of 0.5mm respectively need stay in left and right side plate and back side panel and front frame soldering mating surface place, also has left and right side plate and radiating fin soldering mating surface to leave the allowance for finish of 0.5mm; Back side panel and front frame the monolateral allowance for finish respectively staying 0.5mm of length direction need in fine finishining time by clamping processing together with method in groups;
4th step, fine finishining, due to a left side, there is spill in upper and lower two faces of right plate, wall is very thin is only 2.3mm, coordinate area also larger with radiating fin soldering, roughing rear left, right plate is easy to cause stress deformation, therefore destressing treatment process should be increased after roughing, part after second time heat treatment, except the process allowance could processed after soldering, outside reinforcement and false boss do not allow to mill, all the other all mill the allowance for finish of 0.5mm by part process requirement, in addition left, the soldering fit clearance of right plate and radiating fin will consider the thickness of weld tabs, coordinate by technological requirement and be machined to the degree of depth,
5th step, trial assembly is joined, after fine finishining completes, each part of cabinet frame carries out trial assembly before brazing and joins, and kit is repaired, in addition must consider with the fastening parts of process screw by composition cabinet frame during trial assembly, to join by technological requirement in place as the case may be and make technique screw, and select M2.5 or M3 process screw that cabinet frame is in addition fastening;
6th step, pricker welds prepares, each part to be welded is needed to carry out strict cleaning before soldering, with cotton ball soaked in alcohol by part brazing contact face wiped clean, the process of solder, generally first uses sand papering to remove surface film oxide, greasy dirt is wiped again with alcohol, reduce photothermal reflectivity, the thermal capacity of frock should be reduced as far as possible under the prerequisite not damaging rigidity, guarantee frock dry cleansing;
7th step, soldering, to the heating of the laggard row three phases of vacuum brazing stove evacuation, is incubated, that is: first stage preheating constant temperature, insulation; Second stage accumulation of energy constant temperature, insulation and phase III soldering constant temperature, insulation; Have a power failure, close fire door, be evacuated to after requiring pressure, be heated to 400 DEG C and be incubated about 45min, delay again and rise to 520 DEG C of insulations, be then warming up to 580 DEG C, be incubated about 30min, when stove district, temperature reaches 600 DEG C, when Part temperature reaches about 590 DEG C, is incubated about 5min, after brazing filler metal melts, stop heating, cabinet frame is lowered the temperature with stove, when being cooled to 200 DEG C, close vacuum system, open intake valve, balance stove inside and outside differential pressure, to be cooledly after less than 60 DEG C, open fire door, take out workpiece, remove fixture;
8th step, postwelding turning, removes workpiece redundant brazing filler metal after welding, mills the process allowance on workpiece and false boss, holes on request, and carries out surface treatment to surface of the work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761520.9A CN105563018A (en) | 2015-11-11 | 2015-11-11 | Machining method of DCMP aluminium alloy vacuum soldering machine case |
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| CN201510761520.9A CN105563018A (en) | 2015-11-11 | 2015-11-11 | Machining method of DCMP aluminium alloy vacuum soldering machine case |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414418A (en) * | 2017-07-12 | 2017-12-01 | 泉州佰源机械科技股份有限公司 | The processing technology of disk water caltrop on a kind of single-side machine |
| CN108655666A (en) * | 2018-03-28 | 2018-10-16 | 中国电子科技集团公司第三十六研究所 | A kind of slot antenna radiant panel and its processing method |
| CN109128706A (en) * | 2018-09-14 | 2019-01-04 | 济南重工股份有限公司 | A kind of processing method of shield machine section of jurisdiction machine movable stand |
| CN109396773A (en) * | 2019-01-02 | 2019-03-01 | 上海聚嘉源真空科技有限公司 | A kind of aluminium alloy cavity production method |
| CN111037022A (en) * | 2020-01-07 | 2020-04-21 | 南通艾斯安液压科技有限公司 | Vacuum brazing process for aluminum radiator |
| CN112091536A (en) * | 2020-08-14 | 2020-12-18 | 陕西千山航空电子有限责任公司 | Aluminum frame type part and vacuum connection method and application thereof |
| CN113369617A (en) * | 2021-06-30 | 2021-09-10 | 中国航发动力股份有限公司 | Rectifier assembly machining method |
| CN114260633A (en) * | 2022-01-07 | 2022-04-01 | 武威职业学院 | Rapid splicing welding equipment for irregular workpieces |
-
2015
- 2015-11-11 CN CN201510761520.9A patent/CN105563018A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414418A (en) * | 2017-07-12 | 2017-12-01 | 泉州佰源机械科技股份有限公司 | The processing technology of disk water caltrop on a kind of single-side machine |
| CN107414418B (en) * | 2017-07-12 | 2019-11-26 | 泉州佰源机械科技股份有限公司 | The processing technology of disk water chestnut on a kind of single-side machine |
| CN108655666A (en) * | 2018-03-28 | 2018-10-16 | 中国电子科技集团公司第三十六研究所 | A kind of slot antenna radiant panel and its processing method |
| CN109128706A (en) * | 2018-09-14 | 2019-01-04 | 济南重工股份有限公司 | A kind of processing method of shield machine section of jurisdiction machine movable stand |
| CN109396773A (en) * | 2019-01-02 | 2019-03-01 | 上海聚嘉源真空科技有限公司 | A kind of aluminium alloy cavity production method |
| CN111037022A (en) * | 2020-01-07 | 2020-04-21 | 南通艾斯安液压科技有限公司 | Vacuum brazing process for aluminum radiator |
| CN112091536A (en) * | 2020-08-14 | 2020-12-18 | 陕西千山航空电子有限责任公司 | Aluminum frame type part and vacuum connection method and application thereof |
| CN113369617A (en) * | 2021-06-30 | 2021-09-10 | 中国航发动力股份有限公司 | Rectifier assembly machining method |
| CN114260633A (en) * | 2022-01-07 | 2022-04-01 | 武威职业学院 | Rapid splicing welding equipment for irregular workpieces |
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Application publication date: 20160511 |