CN102152074B - Processing method of seamless joint of aluminum alloy - Google Patents
Processing method of seamless joint of aluminum alloy Download PDFInfo
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- CN102152074B CN102152074B CN 201110059893 CN201110059893A CN102152074B CN 102152074 B CN102152074 B CN 102152074B CN 201110059893 CN201110059893 CN 201110059893 CN 201110059893 A CN201110059893 A CN 201110059893A CN 102152074 B CN102152074 B CN 102152074B
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention relates to a processing method of seamless joint of aluminum alloy, which is used for processing a semicircular revolving member. The processing method is characterized by comprising the following steps of: 1) carrying out final heat treatment in a blank state; 2) carrying out rough processing on a part; 3) cutting the part into two halves uniformly along an axle wire; 4) milling two cut surfaces; 5) carrying out low-temperature annealing process on semi-finished parts; 6) grinding joint surfaces on a grinding platform; 7) bonding the joint surfaces with industrial glue; 8) using a height ruler to draw a scribed line vertical to the joint surfaces on the bonded component; and 9) carrying out fine turning after the component is clamped, wherein the part automatically separates and become semicircle shaped after the final size and accuracy are reached, and the two parts which are processed in a grouping manner are marked with a set mark and assembled in a set manner. By the processing method, the reduction of the part accuracy due to deformation can be prevented in the processing process, the local size tolerance near the joint position, which is caused by the sliding of the parts relative to the joint surfaces in joint processing is prevented; simultaneously, the quantity of special clamps is reduced and the manufacturing cost is reduced.
Description
Technical field
The present invention relates to a kind of processing method of seamless joint of aluminum alloy, be applicable to the complete involutory high accuracy processing of semicircle revolving parts.
Background technology
Because project organization limitation or reduce assembly difficulty, the revolving parts such as some lining and piston are designed to semicircle, when final assembling, installation need to be grouped together two semicircular workpiece, bring into play the effect of whole revolving body, require the axiality of the circularity of endoporus of involutory rear formation and inside and outside circle cylinder generally very high, for this class part, following two kinds of processing methods arranged generally:
Method one: part roughing is to tubular piece, surfaces externally and internally stays suitable surplus, then tubular piece is cut into 2 semi-circular from the axis, will spot weld together behind 2 semi-circular seamless butt-joints again, carry out lonneal and eliminate part stress, last finish turning reaches designing requirement.
Method two: part roughing is to tubular piece, and surfaces externally and internally stays suitable surplus, then tubular piece is cut into 2 semi-circular from the axis, uses anchor clamps to fix two semi-circular, carries out finish turning and reaches designing requirement.
In the actual production, two kinds of processing methods respectively reflect some shortcomings: the part of employing method one processing is difficult to eliminate fully when lonneal owing to produce thermal stress during spot welding, carried out the finish turning operation after, often there is distortion to exist, affects parts size precision and use function; The part that adopts method two processing to clamp precision and involutory processing before the dimensional requirement precision of half-finished parts very high, simultaneously, the clamping force of anchor clamps can not be excessive can not be too small, otherwise part since in the distortion that clamping force produces and the process part with respect to the slip of involutory surface, cause parts size precision to descend, near the phenomenon of the dimension overproof involutory position.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of processing method of seamless joint of aluminum alloy, the method prevents that namely the distortion that produces in the process from reducing element precision, prevent that again part from causing near the local overproof phenomenon of the size position with respect to the slippage of involutory surface in involutory processing, reduce simultaneously the quantity of special fixture, reduce manufacturing cost.
For overcoming the above problems, concrete technical scheme of the present invention is as follows: a kind of processing method of seamless joint of aluminum alloy is characterized in that following steps:
1) if part has heat treatment requirements, under woollen state, carries out final heat treatment;
2) with part roughing, the inside and outside circle made allowance is tubular piece;
3) part is evenly cut in half along the axis, the cutting knife width is not more than 2mm;
Two cut-out facing cuts that 4) will cut are flat, and flatness is in 0.15mm;
5) half-finished parts carries out the lonneal processing, eliminates the material internal stress;
6) grind involutory surface at grinding plate, make the flatness of involutory surface be not more than 0.03mm;
7) with the bonding involutory surface of industrial glue;
8) draw groove perpendicular to involutory surface with height gauge on the assembly after bonding;
9) carry out finish turning behind the assembly clamping, reach final size and precision and incision, with two complete marks of part mark processing in groups, and complete assembling.
Adopt the advantage of said method as follows: 1) welding stress in the adhesive bonding method process, part can not produce distortion, has prevented because distortion reduces the problem of element precision; 2) by reasonable clamping, part can with respect to the slippage of involutory surface, not eliminated near the local overproof phenomenon of the size involutory position in involutory processing; 3) do not need special fixture in the process, reduce manufacturing cost, eliminated the position error of using anchor clamps to produce yet.Can be widely used in the equipment manufacture industries such as machinery, aviation, automobile, method is simple, and is easy to implement.
Description of drawings
Fig. 1 is half circular piston clamping point schematic diagram.
Fig. 2 is the physical dimension figure of half circular piston.
Among the figure: 1, part; 2, anchor clamps; 3, involutory surface; 4, the clamping point position line.
The specific embodiment
A kind of processing method of seamless joint of aluminum alloy is characterized in that following steps:
1. if part has heat treatment requirements, under woollen state, carry out final heat treatment;
2. with part roughing, the inside and outside circle made allowance is tubular piece;
3. part is evenly cut in half along the axis, the cutting knife width is not more than 2mm;
4. two cut-out facing cuts that will cut are flat, and flatness is controlled in the 0.15mm;
5. half-finished parts carries out lonneal, eliminates the material internal stress;
6. grind involutory surface at grinding plate, make the flatness of involutory surface be not more than 0.03mm;
7. with the bonding involutory surface of industrial glue, if the involutory surface area is less than 7mm
2Can use the J-168 glue bond, if the involutory area of plane is greater than 7mm
2, can use 502 glue bonding;
8. draw groove perpendicular to involutory surface (centering clamping point when being used for finish turning) with height gauge on the assembly after bonding;
9. carry out finish turning behind the assembly clamping, reach final size and precision and incision, with two complete marks of part mark processing in groups, and complete assembling.
The below is take semicircle Piston Machining shown in Figure 2 as example.Primary structure and the size of product are seen Fig. 2, and part material is 2D70, and woollen state is new as-quenched, require finally to be heat-treated to the T6 state.
Concrete procedure of processing is as follows:
1) under woollen state (diameter Ф 120), finally is heat-treated to the T6 state;
2) preliminary working to excircle dimension is Ф 118, and endoporus is machined to size Ф 79, and length is 128mm;
3) part is evenly cut in half along the axis, the cutting knife width is not more than 2mm;
4) mill the truncation section, flatness is controlled in the 0.15mm;
5) the semi-finished product lonneal eliminates stress;
6) abrasive cutting-off face is that the section flatness is not more than 0.03mm, uses 502 glue bond abradant surfaces;
7) mark the clamping position line perpendicular to involutory surface;
8) carrying out finish turning behind the clamping of position shown in Figure 1, guarantee inside and outside circle size and groove size among Fig. 2, add the man-hour speed of mainshaft and be not more than 300 rev/mins, cut off behind the inside and outside circle finish turning, two semicircle piston rings separate automatically;
Two and half circular pistons that 9) will process are together made the cover mark, complete use.
Claims (1)
1. processing method of seamless joint of aluminum alloy is characterized in that following steps:
1) if part has heat treatment requirements, under woollen state, carries out final heat treatment;
2) with part roughing, the inside and outside circle made allowance is tubular piece;
3) part is evenly cut in half along the axis, the cutting knife width is not more than 2mm;
Two cut-out facing cuts that 4) will cut are flat, and flatness is in 0.15mm;
5) half-finished parts carries out the lonneal processing, eliminates the material internal stress;
6) grind involutory surface at grinding plate, make the flatness of involutory surface be not more than 0.03mm;
7) with the bonding involutory surface of industrial glue;
8) draw groove perpendicular to involutory surface, centering clamping point when being used for finish turning with height gauge on the assembly end face after bonding;
9) carry out finish turning behind the assembly clamping, reach final size and precision after part will automatically separate, semicircular in shape, with two complete marks of part mark of processing in groups, and complete assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110059893 CN102152074B (en) | 2011-03-14 | 2011-03-14 | Processing method of seamless joint of aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110059893 CN102152074B (en) | 2011-03-14 | 2011-03-14 | Processing method of seamless joint of aluminum alloy |
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| Publication Number | Publication Date |
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| CN102152074A CN102152074A (en) | 2011-08-17 |
| CN102152074B true CN102152074B (en) | 2013-03-20 |
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| CN 201110059893 Expired - Fee Related CN102152074B (en) | 2011-03-14 | 2011-03-14 | Processing method of seamless joint of aluminum alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059559A (en) * | 2020-09-17 | 2020-12-11 | 中国航发沈阳黎明航空发动机有限责任公司 | Joint ball seat turning and milling combined machining and inner spherical surface grinding method |
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| CN103537713B (en) * | 2013-10-29 | 2015-11-04 | 贵州航天新力铸锻有限责任公司 | The manufacture method of nuclear power station steam generator vertical support hemisphere face lining |
| CN106695259A (en) * | 2017-01-04 | 2017-05-24 | 青岛蓝光晶科新材料有限公司 | Machining method for semicircular target material |
| CN107553073A (en) * | 2017-09-26 | 2018-01-09 | 苏州阿清智能科技有限公司 | A kind of same axis processing technique and assembly technology of discrete revolving support part |
| CN112372255B (en) * | 2020-11-30 | 2021-10-12 | 贵州精立航太科技有限公司 | Processing technology of damping bowl |
| CN114346597B (en) * | 2021-12-17 | 2023-04-14 | 国营芜湖机械厂 | Remanufacturing and repairing process for aluminum alloy filter screen bracket of aircraft fuel electric pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS59201726A (en) * | 1983-04-28 | 1984-11-15 | Toyo Sangyo Kk | Manufacture of semi-circular parts having finishing margins at both ends |
| CN1127391C (en) * | 2001-03-18 | 2003-11-12 | 常永峰 | Motorcycle piston ring machining process |
| DE102007010839B4 (en) * | 2007-03-06 | 2009-02-05 | Federal-Mogul Nürnberg GmbH | A method of manufacturing a piston and piston having an annular reinforcement comprising a plurality of reinforcing segments |
| CN100501178C (en) * | 2007-03-28 | 2009-06-17 | 上海电气集团上海电机厂有限公司 | Large-sized turbine generator bush and method for machining bore of bush |
| CN100552248C (en) * | 2008-01-22 | 2009-10-21 | 重庆跃进机械厂有限公司 | The manufacturing process of high-power low-speed diesel shaft bushing |
| CN101649790B (en) * | 2009-07-20 | 2011-09-07 | 南京飞燕活塞环股份有限公司 | Processing method of steel piston gas ring |
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| JP昭59-201726A 1984.11.15 |
Cited By (1)
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| CN112059559A (en) * | 2020-09-17 | 2020-12-11 | 中国航发沈阳黎明航空发动机有限责任公司 | Joint ball seat turning and milling combined machining and inner spherical surface grinding method |
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