CN103273126B - Aluminium lithium alloy covering numerical control milling method - Google Patents
Aluminium lithium alloy covering numerical control milling method Download PDFInfo
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- CN103273126B CN103273126B CN201310233088.7A CN201310233088A CN103273126B CN 103273126 B CN103273126 B CN 103273126B CN 201310233088 A CN201310233088 A CN 201310233088A CN 103273126 B CN103273126 B CN 103273126B
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- 238000003801 milling Methods 0.000 title claims abstract description 45
- 229910001148 Al-Li alloy Inorganic materials 0.000 title claims abstract description 18
- 239000001989 lithium alloy Substances 0.000 title claims abstract description 18
- FCVHBUFELUXTLR-UHFFFAOYSA-N [Li].[AlH3] Chemical compound [Li].[AlH3] FCVHBUFELUXTLR-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 10
- 238000003754 machining Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction 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
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- Milling Processes (AREA)
Abstract
The present invention relates to a kind of aluminium lithium alloy covering numerical control milling method.The technical scheme adopted is: will overlap with sealing strip the two pieces part cut and be fixed on together on vacuum platform; Digit Control Machine Tool milling side; Shape in milling part: the slotting cutter adopting diameter 20 millimeters of R3, machine tool chief axis revolution 3500 revs/min, feeding F=1500, every cutter cutting-in 1 millimeter; Milling External Shape: adopt diameter 14 millimeters of R0 slotting cutters, cutter length is within 30 millimeters, and sword length is between 10-15 millimeter, rough mill twice time cutter, finish-milling once, spindle revolutions 3500 revs/min, feed speed F=800, rough mills every cutter cutting-in 1 millimeter, finish-milling cutting-in 0.6 millimeter.Aluminium lithium alloy covering is successfully processed by traditional milling and is made machine Milling Machining into by the present invention, has filled up the blank of aluminium lithium alloy covering machine milling, has adopted method product percent of pass of the present invention to reach 100%.
Description
Technical field
The present invention relates to aircraft manufacturing field, particularly the processing method of the typical part single covering reinforcement of aircraft rear body section.
Background technology
In aircraft manufacturing, aluminium lithium alloy is new material, present aircraft skin be non-aluminium lithium alloy material, carry out repeatedly milling after normally adopting roll forming to process, so cannot 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 use customizations groove milling, maintenance expense is high, and cost is high.
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 for the milling of 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 with sealing strip the two pieces part cut to be fixed on together on vacuum platform;
2) Digit Control Machine Tool milling side;
3) shape in milling part: the slotting cutter adopting diameter 20 millimeters of R3, machine tool chief axis revolution 3500 revs/min, feeding F=1500, every cutter cutting-in 1 millimeter;
4) milling External Shape: adopt diameter 14 millimeters of R0 slotting cutters, cutter length is within 30 millimeters, and sword length is between 10-15 millimeter, rough mill twice time cutter, finish-milling once, spindle revolutions 3500 revs/min, feed speed F=800, rough mills every cutter cutting-in 1 millimeter, finish-milling cutting-in 0.6 millimeter.
The invention has the beneficial effects as follows: through inventor's performing creative labour, successfully have developed the method changing machine milling for the milling of aluminium lithium alloy covering into, determine the technical process of machine milling, the covering reinforcement processed by method of the present invention, meet design requirement after assembling aircraft.Because part material is thin, by Choice and process cutter, rationally determine cutting parameter, solve the problem of part deformation.Aluminium lithium alloy covering is successfully processed by traditional milling and is made machine Milling Machining into by the present invention, has filled up the blank of aluminium lithium alloy covering machine milling.By optimizing machining technology scheme, the scheme using vacuum platform and two-piece-dress to cut choose reasonable cutting parameter, successfully control problem on deformation after the milling of covering machine, meet the requirement of engineering drawing, step thicknesses tolerance reaches the requirement of+0.17/-0.10 millimeter.Shorten the process-cycle of part after milling being made into machine milling, saved the cost of newly-built milling groove and maintenance, adopted method product percent of pass of the present invention to reach 100%.
Accompanying drawing explanation
Fig. 1 is the structural representation of the typical part single covering reinforcement of the aircraft rear body section of embodiment 1.
Detailed description of the invention
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 many places protruding, and its length is 1049 millimeters, wide 716.3 millimeters, thickness 3.17 millimeters, MAT'L specification is BAMS516-024, and step thicknesses tolerance is+0.17/-0.10 millimeter, part is the thinnest is 1.27 millimeters, adopts aluminium lithium alloy materials processing.With the part of Fig. 1 just in order to processing method of the present invention is described, and do not limit the present invention's part to be processed, as long as adopt aluminium lithium alloy material can adopt method of the present invention as the parts of covering.
Consider that part comparison is thin, and aluminium lithium alloy is new material, the possibility adding post-construction deformation is large, so find two pieces part to overlap to cut processing through test of many times together, which increases part and frock contact area, effectively can prevent the machining deformation of part.And then processing parts profile, adopt gradation feed during processing parts profile.Concrete grammar is as follows:
1) will overlap with sealing strip the two pieces part cut to be fixed on together on vacuum platform, and to ensure that part is adsorbed in frock completely, increase frictional force, overcome cutting force, prevent part displacement because of play in process;
2) Digit Control Machine Tool milling side;
3) shape in milling part: the slotting cutter adopting diameter 20 millimeters of R3, machine tool chief axis revolution 3500 revs/min, feeding F=1500, every cutter cutting-in 1 millimeter;
4) milling External Shape: adopt diameter 14 millimeters of R0 slotting cutters, cutter length is within 30 millimeters, and sword length is between 10-15 millimeter, and rough mill twice time cutter, finish-milling once.Spindle revolutions 3500 revs/min, feed speed F=800, rough mills every cutter cutting-in 1 millimeter, finish-milling cutting-in 0.6 millimeter.
Method product percent of pass of the present invention is adopted 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 with sealing strip the two pieces part cut to be fixed on together on vacuum platform, part is adsorbed in frock completely;
2) Digit Control Machine Tool milling side;
3) shape in milling part: the slotting cutter adopting diameter 20 millimeters of R3, machine tool chief axis revolution 3500 revs/min, feeding F=1500, every cutter cutting-in 1 millimeter;
4) milling External Shape: adopt diameter 14 millimeters of R0 slotting cutters, cutter length is within 30 millimeters, and sword length is between 10-15 millimeter, rough mill twice time cutter, finish-milling once, spindle revolutions 3500 revs/min, feed speed F=800, rough mills every cutter cutting-in 1 millimeter, finish-milling cutting-in 0.6 millimeter.
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 |
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| Publication Number | Publication Date |
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| CN103273126A CN103273126A (en) | 2013-09-04 |
| CN103273126B true CN103273126B (en) | 2016-04-13 |
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| CN201310233088.7A Expired - Fee Related CN103273126B (en) | 2013-06-13 | 2013-06-13 | Aluminium lithium alloy covering numerical control milling method |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN103920915B (en) * | 2014-04-04 | 2016-08-24 | 中航沈飞民用飞机有限责任公司 | A kind of thin skin Grinder and apply the method that this device carries out milling |
| 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 |
| CN106363214B (en) * | 2016-12-01 | 2019-03-01 | 江西洪都航空工业集团有限责任公司 | A kind of logical window processing technology 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4461256B2 (en) * | 2005-02-28 | 2010-05-12 | 国立大学法人東京農工大学 | Surface processing control method and surface processing control program |
| JP5353375B2 (en) * | 2009-03-31 | 2013-11-27 | アイシン・エィ・ダブリュ株式会社 | Cutting method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 (3)
| Title |
|---|
| 《MMS：新型绿色蒙皮加工***》;***等;《航空制造技术》;20101031(第19期);第84-86页 * |
| 《新一代飞机蒙皮绿色加工技术》;鲁达;《航空制造技术》;20120831(第16期);第102-103页 * |
| 《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》;张彤;《教练机》;20110430(第4期);第25-29页 * |
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| CN103273126A (en) | 2013-09-04 |
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Granted publication date: 20160413 |