CN103273126A - Numerically controlled milling processing method for aluminum lithium alloy skin - Google Patents
Numerically controlled milling processing method for aluminum lithium alloy skin Download PDFInfo
- Publication number
- CN103273126A CN103273126A CN2013102330887A CN201310233088A CN103273126A CN 103273126 A CN103273126 A CN 103273126A CN 2013102330887 A CN2013102330887 A CN 2013102330887A CN 201310233088 A CN201310233088 A CN 201310233088A CN 103273126 A CN103273126 A CN 103273126A
- Authority
- CN
- China
- Prior art keywords
- milling
- cutting
- cutter
- lithium alloy
- millimeter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003801 milling Methods 0.000 title claims abstract description 33
- 229910001148 Al-Li alloy Inorganic materials 0.000 title claims abstract description 18
- 239000001989 lithium alloy Substances 0.000 title claims abstract description 18
- 238000003672 processing method Methods 0.000 title abstract description 4
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 title abstract 4
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 4
- FCVHBUFELUXTLR-UHFFFAOYSA-N [Li].[AlH3] Chemical compound [Li].[AlH3] FCVHBUFELUXTLR-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 11
- 238000012545 processing Methods 0.000 abstract description 10
- 238000012797 qualification Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Milling Processes (AREA)
Abstract
The invention relates to a numerically controlled milling processing method for an aluminum lithium alloy skin. The adopted technical scheme is that a sealing strip is used for fixing two parts to be cut in a sleeving manner on a vacuum platform together; a numerical control machine tool is used for square milling; inner shapes of the parts are milled: an end milling cutter with the diameter of 20 mm R3 is adopted, the revolution of a spindle of the machine tool is 3500 revolutions/min, feed F is 1500, and the cutting depth is 1 mm for each cutting; and the outlines of the parts are milled: an end milling cutter with the diameter of 14 mm R0 is adopted, the length of the cutter is within 30 mm, the length of the blade ranges from 10 mm to 15 mm, rough milling is performed twice, finish milling is performed once, the revolution of the spindle is 3500 revolutions/min, the feed F is 800, the cutting depth is 1 mm for each rough milling cutting, and the cutting depth is 0.6 mm for each finish milling cutting. According to the method, traditional chemical mill processing is changed into machine mill processing successfully for the aluminum lithium alloy skin, the gap for machine milling of the aluminum lithium alloy skin is filled, and the product qualification rate reaches 100% with the adoption of the method.
Description
Technical field
The present invention relates to the aircraft manufacturing field, particularly the processing method of the typical part single covering reinforcement of aircraft rear body section.
Background technology
Aluminium lithium alloy is new material in aircraft manufacturing, what aircraft skin was used now is non-aluminium lithium alloy material, normally adopt and carry out repeatedly milling behind the roll forming and process, so can't determine whether the milling of aluminium lithium alloy can mix groove with other aluminium alloy and carry out milling.If carry out milling separately, need to use customizations groove milling, maintenance expense height, cost height.
Summary of the invention
In order to overcome the above problems, the invention provides a kind of aluminium lithium alloy covering numerical control milling method that mills at aluminium lithium alloy covering machine.
The technical solution used in the present invention is: aluminium lithium alloy covering numerical control milling method, and step is as follows:
1) will overlap two parts cutting with sealing strip is fixed on the vacuum platform together;
2) the Digit Control Machine Tool side of milling;
3) mill shape in the part: adopt the slotting cutter of 20 millimeters R3 of diameter, 3500 rev/mins of machine tool chief axis revolutions, feeding F=1500,1 millimeter of every cutter cutting-in;
4) mill the part profile: adopt 14 millimeters R0 slotting cutters of diameter, cutter length is in 30 millimeters, and sword length is between the 10-15 millimeter, rough mill cutter twice time, finish-milling once, 3500 rev/mins of spindle revolutions, feed speed F=800 rough mills 1 millimeter of every cutter cutting-in, 0.6 millimeter of finish-milling cutting-in.
The invention has the beneficial effects as follows: through inventor's performing creative labour, successful development milling changes the method that machine mills at the aluminium lithium alloy covering, determined the technical process that machine mills, by the covering reinforcement of method processing of the present invention, met design requirement behind the assembling aircraft.Because part material is thin, by selecting process tool, rationally determine cutting parameter, solved the problem of part deformation.The blank that aluminium lithium alloy covering machine mills has been filled up in making the aluminium lithium alloy covering into machine by traditional milling processing and milling processing of success of the present invention.By optimizing processing scheme, the scheme and the choose reasonable cutting parameter that use vacuum platform and two-piece-dress to cut, successful control the covering machine mill problem on deformation afterwards, satisfied the requirement of engineering drawing, the step thicknesses tolerance reaches+requirement of 0.17/-0.10 millimeter.With the process-cycle that milling makes to have shortened after machine mills part into, saved the cost of newly-built milling groove and maintenance, adopt method product percent of pass of the present invention to reach 100%.
Description of drawings
Fig. 1 is the structural representation of typical part single covering reinforcement of the aircraft rear body section of embodiment 1.
The specific embodiment
As shown in Figure 1, a kind of typical part single covering reinforcement of aircraft rear body section, it is irregularly shaped, and the outer rim of part has the many places projection, and its length is 1049 millimeters, wide 716.3 millimeters, 3.17 millimeters of thickness, MAT'L specification is BAMS516-024, the step thicknesses tolerance is+the 0.17/-0.10 millimeter, part is the thinnest to be 1.27 millimeters, adopts aluminium lithium alloy materials processing.Just for processing method of the present invention is described, and do not limit the present invention's part to be processed with the part of Fig. 1, as long as adopt the aluminium lithium alloy material can adopt method of the present invention as the parts of covering.
Consider that part is thinner, and aluminium lithium alloy is new material, the possibility of processing back distortion is big, cuts processing so find two parts are overlapped through test of many times together, has increased part and frock contact area like this, can effectively prevent the machining deformation of part.And then the processing parts profile, adopt the gradation feed during processing parts profile.Concrete grammar is as follows:
1) will overlap two parts cutting with sealing strip and be fixed on together on the vacuum platform, be adsorbed on fully on the frock to guarantee part, increase frictional force, overcome cutting force, prevent part in process because of the play displacement;
2) the Digit Control Machine Tool side of milling;
3) mill shape in the part: adopt the slotting cutter of 20 millimeters R3 of diameter, 3500 rev/mins of machine tool chief axis revolutions, feeding F=1500,1 millimeter of every cutter cutting-in;
4) mill the part profile: adopt 14 millimeters R0 slotting cutters of diameter, cutter length is in 30 millimeters, and sword length is rough milled cutter twice time between the 10-15 millimeter, and finish-milling once.3500 rev/mins of spindle revolutions, feed speed F=800 rough mills 1 millimeter of every cutter cutting-in, 0.6 millimeter of finish-milling cutting-in.
Adopt method product percent of pass of the present invention to reach 100%.
Claims (1)
1. aluminium lithium alloy covering numerical control milling method is characterized in that step is as follows:
1) will overlap two parts cutting with sealing strip is fixed on the vacuum platform together;
2) the Digit Control Machine Tool side of milling;
3) mill shape in the part: adopt the slotting cutter of 20 millimeters R3 of diameter, 3500 rev/mins of machine tool chief axis revolutions, feeding F=1500,1 millimeter of every cutter cutting-in;
4) mill the part profile: adopt 14 millimeters R0 slotting cutters of diameter, cutter length is in 30 millimeters, and sword length is between the 10-15 millimeter, rough mill cutter twice time, finish-milling once, 3500 rev/mins of spindle revolutions, feed speed F=800 rough mills 1 millimeter of every cutter cutting-in, 0.6 millimeter of finish-milling cutting-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310233088.7A CN103273126B (en) | 2013-06-13 | 2013-06-13 | Aluminium lithium alloy covering numerical control milling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310233088.7A CN103273126B (en) | 2013-06-13 | 2013-06-13 | Aluminium lithium alloy covering numerical control milling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103273126A true CN103273126A (en) | 2013-09-04 |
| CN103273126B CN103273126B (en) | 2016-04-13 |
Family
ID=49055804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310233088.7A Expired - Fee Related CN103273126B (en) | 2013-06-13 | 2013-06-13 | Aluminium lithium alloy covering numerical control milling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103273126B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921068A (en) * | 2014-04-04 | 2014-07-16 | 中航沈飞民用飞机有限责任公司 | Single-curvature cover machining method |
| CN103920915A (en) * | 2014-04-04 | 2014-07-16 | 中航沈飞民用飞机有限责任公司 | Thin skin milling device and method for milling by utilizing device |
| CN103934492A (en) * | 2014-04-04 | 2014-07-23 | 中航沈飞民用飞机有限责任公司 | Milling method capable of evenly releasing milling stress of skin machine |
| CN104722819A (en) * | 2015-03-17 | 2015-06-24 | 什邡市明日宇航工业股份有限公司 | High-efficiency cutting processing method of aluminium-alloy aerospace structure part |
| CN104772648A (en) * | 2015-04-09 | 2015-07-15 | 西安工业大学 | Milling processing method for thin-wall workpiece of airplane |
| CN106363214A (en) * | 2016-12-01 | 2017-02-01 | 江西洪都航空工业集团有限责任公司 | Machining technology of through window of aircraft skin |
| CN111112704A (en) * | 2019-12-30 | 2020-05-08 | 中国航发湖南南方宇航工业有限公司 | Side processing method of plate part with corner on side |
| CN112658307A (en) * | 2020-12-15 | 2021-04-16 | 广西玉柴机器股份有限公司 | Method for machining through-nail hole hollowed in middle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006263904A (en) * | 2005-02-28 | 2006-10-05 | Tokyo Univ Of Agriculture & Technology | Surface processing control method and surface processing control program |
| CN201175781Y (en) * | 2008-01-29 | 2009-01-07 | 沈阳飞机工业（集团）有限公司 | Technical equipment for numerically controlled machined skin |
| CN101602122A (en) * | 2009-07-15 | 2009-12-16 | 天津商业大学 | A kind of precision numerical control milling method for thin-wall parts |
| JP2010234478A (en) * | 2009-03-31 | 2010-10-21 | Aisin Aw Co Ltd | Cutting method |
| CN102962700A (en) * | 2012-11-27 | 2013-03-13 | 北京航空航天大学 | Vacuum adsorbing system for clamping and fixing thin plate during milling and use method thereof |
-
2013
- 2013-06-13 CN CN201310233088.7A patent/CN103273126B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006263904A (en) * | 2005-02-28 | 2006-10-05 | Tokyo Univ Of Agriculture & Technology | Surface processing control method and surface processing control program |
| CN201175781Y (en) * | 2008-01-29 | 2009-01-07 | 沈阳飞机工业（集团）有限公司 | Technical equipment for numerically controlled machined skin |
| JP2010234478A (en) * | 2009-03-31 | 2010-10-21 | Aisin Aw Co Ltd | Cutting method |
| CN101602122A (en) * | 2009-07-15 | 2009-12-16 | 天津商业大学 | A kind of precision numerical control milling method for thin-wall parts |
| CN102962700A (en) * | 2012-11-27 | 2013-03-13 | 北京航空航天大学 | Vacuum adsorbing system for clamping and fixing thin plate during milling and use method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 张彤: "《飞机蒙皮厚度精确加工的最新技术—以数铣替代化铣的绿色加工工艺》", 《教练机》, no. 4, 30 April 2011 (2011-04-30) * |
| 张志国等: "《MMS：新型绿色蒙皮加工系统》", 《航空制造技术》, no. 19, 31 October 2010 (2010-10-31) * |
| 邱城: "《数控机床与基础制造装备领域技术预测与关键技术选择》", 30 June 2012, article "《蒙皮镜像铣切成套技术》" * |
| 鲁达: "《新一代飞机蒙皮绿色加工技术》", 《航空制造技术》, no. 16, 31 August 2012 (2012-08-31) * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921068A (en) * | 2014-04-04 | 2014-07-16 | 中航沈飞民用飞机有限责任公司 | Single-curvature cover machining method |
| CN103920915A (en) * | 2014-04-04 | 2014-07-16 | 中航沈飞民用飞机有限责任公司 | Thin skin milling device and method for milling by utilizing device |
| CN103934492A (en) * | 2014-04-04 | 2014-07-23 | 中航沈飞民用飞机有限责任公司 | Milling method capable of evenly releasing milling stress of skin machine |
| CN103921068B (en) * | 2014-04-04 | 2016-01-27 | 中航沈飞民用飞机有限责任公司 | Single degree covering processing method |
| CN104722819A (en) * | 2015-03-17 | 2015-06-24 | 什邡市明日宇航工业股份有限公司 | High-efficiency cutting processing method of aluminium-alloy aerospace structure part |
| CN104772648A (en) * | 2015-04-09 | 2015-07-15 | 西安工业大学 | Milling processing method for thin-wall workpiece of airplane |
| CN106363214A (en) * | 2016-12-01 | 2017-02-01 | 江西洪都航空工业集团有限责任公司 | Machining technology of through window of aircraft skin |
| CN111112704A (en) * | 2019-12-30 | 2020-05-08 | 中国航发湖南南方宇航工业有限公司 | Side processing method of plate part with corner on side |
| CN112658307A (en) * | 2020-12-15 | 2021-04-16 | 广西玉柴机器股份有限公司 | Method for machining through-nail hole hollowed in middle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103273126B (en) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103273126A (en) | Numerically controlled milling processing method for aluminum lithium alloy skin | |
| CN109396511A (en) | A kind of large size half cover thin-walled cast steel shell machining process of steep-taper | |
| CN101602122B (en) | Precision numerical control milling method for thin-wall parts | |
| CN103286525B (en) | A kind of forging part large thin-wall Split Casing numerical-control processing method | |
| CN104874846A (en) | Composite honeycomb core profile machining method and cutter | |
| CN103801740A (en) | Honeycomb part machining method | |
| CN104668925A (en) | Numerical control machining method of paper-based honeycomb part | |
| CN103586515A (en) | Numerically-controlled milling method for skin-covered components | |
| CN103454973A (en) | Numerical control machining programming method of spiral groove of parameterized numerical control end mill | |
| CN201684646U (en) | Knife roller structure of shredder | |
| CN102500762B (en) | Numerical control processing method of thin-wall aluminium honeycomb part | |
| CN108356485A (en) | A kind of processing method with tenon tooth small part | |
| CN201823994U (en) | Paper binding formed cutter with composite board slots | |
| CN203330224U (en) | Side cutting die for steering nut | |
| CN204353498U (en) | A kind of compound tool | |
| CN105458638B (en) | A kind of top rod mold processing technology | |
| CN102728878B (en) | Numerical control curved surface profile processing Z-shaped process connection method | |
| CN105945652B (en) | Decision method for aerospace component processing cutting parameter | |
| CN103878427A (en) | Formed cutter for machining hub window curved surface and milling method of formed cutter | |
| CN204171425U (en) | A kind of composite milling cutter that simultaneously can cut planet carrier cylinder cylindrical and chamfering | |
| CN202447756U (en) | Diamond composite reamer for gear box | |
| CN203091885U (en) | Chamfering machine and chamfering tool | |
| CN202317066U (en) | Combined tool for processing large plane | |
| CN205270908U (en) | Chuck screw thread sword | |
| CN202424423U (en) | Cold extrusion workpiece of motor hub |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |