CN108098255B - A kind of TA15 titanium alloy frame class parts machining process - Google Patents

A kind of TA15 titanium alloy frame class parts machining process Download PDF

Info

Publication number
CN108098255B
CN108098255B CN201711231669.1A CN201711231669A CN108098255B CN 108098255 B CN108098255 B CN 108098255B CN 201711231669 A CN201711231669 A CN 201711231669A CN 108098255 B CN108098255 B CN 108098255B
Authority
CN
China
Prior art keywords
milling
cutting
cutter
finish
titanium alloy
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.)
Active
Application number
CN201711231669.1A
Other languages
Chinese (zh)
Other versions
CN108098255A (en
Inventor
陈燕军
熊太菊
欧阳阿宁
徐勇
李蔚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Hongdu Aviation Industry Group Co Ltd
Original Assignee
Jiangxi Hongdu Aviation Industry Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangxi Hongdu Aviation Industry Group Co Ltd filed Critical Jiangxi Hongdu Aviation Industry Group Co Ltd
Priority to CN201711231669.1A priority Critical patent/CN108098255B/en
Publication of CN108098255A publication Critical patent/CN108098255A/en
Application granted granted Critical
Publication of CN108098255B publication Critical patent/CN108098255B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P13/00Making metal objects by operations essentially involving machining but not covered by a single other subclass
    • B23P13/02Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important

Abstract

The present invention relates to a kind of TA15 titanium alloy frame class parts machining processes, belong to aeronautical manufacture manufacture field.It includes (1), bores fabrication hole, (2), the prebored hole of U brill, (3), roughing vallecular cavity, (4), inserts milling corner, (5), finish-milling rib, edge strip top surface, (6), finish-milling web, (7), finish-milling periphery, (8), finish-milling corner;The present invention solves the processing problems of TA15 titanium alloy difficult-to-machine material, being it provides a set of science, economy, efficient technical solutions using processing in aero frame shape workpiece, it improves the processing efficiency of TA15 titanium alloy frame class part, save cutter expense, and provide finished part qualification rate.

Description

A kind of TA15 titanium alloy frame class parts machining process
Technical field
The present invention relates to a kind of TA15 titanium alloy frame class parts machining processes, belong to aeronautical manufacture manufacture field.
Background technique
The use of titanium and its alloy in national defense industry is based primarily upon the excellent properties of titanium alloy: light weight, specific strength Height, high temperature resistant, good corrosion resistance, high tenacity, it is nonmagnetic, can be matched with composite material.These are all titanium alloy in national defence work Application in industry provides condition.
Currently, TA15 titanium alloy in aviation field using more and more extensive, TA15 titanium alloy is typical high tough class Difficult-to-machine material, processing characteristics are mainly manifested in the following aspects:
1., TA15 titanium alloy intensity it is high, hardness is big, it requires that process equipment power is big, cutter should have higher intensity And hardness.
2., chip and rake face contact area it is small, point of a knife stress is big.Compared with 45 steel, although the cutting force of titanium alloy is only Have its 2/3~3/4, but the contact area of titanium alloy chip and rake face is small, the stress that point of a knife or cutting edge are born is instead very Greatly, point of a knife or cutting edge are prone to wear.
3., TA15 titanium alloy friction factor is big, thermal coefficient is low, respectively the 1/4 of iron and aluminium and 1/16.Cutter and chip Contact length it is short, without easily distributing in small area that cutting heat accumulates near cutting edge.These factors cause titanium to close The cutting temperature of gold is very high, causes tool wear to accelerate and influences processing quality.
4., since TA15 titanium alloy elastic modulus is low, workpiece rebound is big when machining, and squeezing knife tool flank causes to grind Damage aggravation and workpiece deformation.
5., TA15 titanium alloy high-temperature chemical activity it is very high, be easy chemistry occurs with the gaseous impurities such as hydrogen, oxygen in air anti- It answers, generates hardened layer, be further exacerbated by the abrasion of cutter.
6., in the processing of TA15 titanium alloy cutting, workpiece material is easily bonded with tool surface, and very high cutting is warm in addition Degree, cutter are also easy to produce diffusive wear and bonding abrasion.
Compared with aluminium alloy, the above processing characteristics of TA15 titanium alloy determine its processing technology to lathe, cutter, processing work More stringent requirements are proposed for process, in addition to selecting high-rate cutting lathe, is equipped with except suitable process tool, with greater need for research It is proposed a set of science, economy, efficient technical solutions.
Summary of the invention
It is an object of the invention to for TA15 titanium alloy material intensity is high, hardness is big, friction factor is big, thermal coefficient is low Deng difficult processing characteristics, a kind of TA15 titanium alloy frame class parts machining process is provided.
The present invention to achieve the goals above, adopts the following technical scheme that
A kind of TA15 titanium alloy frame class parts machining process, it includes:
(1), fabrication hole is bored;
(2), U bores prebored hole: it is bored using indexable tool U and carries out prebored hole in each frame middle position of frame class part blank, Bore mode gets into bottom acyclic patterns using one, it is necessary to which full knife drilling, drilling depth is than milling depth depth 1mm, and web There are surpluses;Maximum drilling depth is necessarily less than chip removal slot length;
(3), roughing vallecular cavity: processing method from inside to outside;Using the big cutting-in milling cutter processing of major diameter;Exist to reduce cutter Impact vibration damage and unnecessary abrasion are generated in the lesser situation of bite, cutter track corner must add arc transition, subtract Few cutter attack;
(4), it inserts milling corner: when the feature of deep trouth or narrow slot need to use big draw ratio tool sharpening, being inserted using axial Corner mode is milled, vibration cutting is reduced, increases Tool in Cutting rigidity;Axial, radial slack, which cannot be greater than, inserts milling cutter cutting ginseng Number, is unable to cut wound part base angle;
(5), finish-milling rib, edge strip top surface: rib, edge strip top surface processing arrangement after rough milling before finish-milling web, this When working position rigidity it is stronger, increase cutting stability;
It is divided into flat-topped rib, diagonal bar again according to rib, edge strip shape;
Above-mentioned rib, edge strip type require to carry out according to following processing method:
1. processing using climb cutting, upmilling is avoided;
2. diagonal bar uses unidirectional climb cutting row butt formula, machine direction must be from inclined-plane minimum point to highest point, to avoid knife Tool blade tipping in downward processing;
(6), finish-milling web: plunge cut way must be that spiral is cut or cycloid is cut, screw diameter and to cut angle necessary Meet Tool in Cutting parameter, cuts 50% that speed is normal process feed speed, processing method is necessary for from the inside to the outside;Cutter track Edit methods are consistent with vallecular cavity is rough milled;
(7), finish-milling periphery: slot periphery axial stratification is processed in place using solid tool, according to titanium alloy by the spy of knife Property, it is radial to increase by one layer of 0.2~0.5mm surplus light, one knife guarantee part size;
Programmed method is milled using five axis sequence;Use circular arc advance and retreat knife;Corner increases appropriate arc transition;Using diameter The multiple tooth solid tool of 20mm or 25mm is processed;
(8), finish-milling corner: inserting milling has made corner in place, and the cutter that when finish-milling slot periphery uses is Φ 20mm or Φ 25mm, nearby there are slotting milling remnants in side wall to corner, it is necessary to carry out corner finishing using diameter of phi 12mm solid tool, mainly Purpose connects side wall flat, is cut using axial stratification.
Further, the type that the big cutting-in milling cutter of major diameter in step (3), roughing vallecular cavity uses is corn milling Knife, welding milling cutter or wavy-edge milling cutter.
Further, increase milling surplus Ap:10mm~30mm in step (3), roughing vallecular cavity.
Beneficial effects of the present invention:
The present invention solves the processing problems of TA15 titanium alloy difficult-to-machine material, is its application in aero frame shape workpiece Processing provides a set of science, economic, efficient technical solutions, improve TA15 titanium alloy frame class part processing efficiency, Cutter expense is saved, and provides finished part qualification rate.
Detailed description of the invention
Fig. 1 is titanium alloy frame class design of part schematic diagram of the invention.
Specific embodiment
In order to keep the purpose of the present invention, technical solution and beneficial effect clearer, below in conjunction with attached drawing of the invention To carry out clear, complete statement.
A kind of TA15 titanium alloy frame class parts machining process, comprising:
1, fabrication hole is bored;
2, U bores prebored hole: being bored using indexable tool U and carries out prebored hole in each frame middle position of frame class part blank, bored Hole mode gets into bottom acyclic patterns using one, it is necessary to which full knife drilling (cannot bore just hole), drilling depth is than milling depth depth 1mm, and there are certain surpluses for web;Maximum drilling depth is necessarily less than chip removal slot length;
3, roughing vallecular cavity: the side (Outward helical or Offset on part One-Way) is processed from inside to outside Formula.Using the big cutting-in milling cutter of major diameter (maize milling cutter, welding milling cutter, wavy-edge milling cutter) processing;To reduce cutter in bite In lesser situation generate impact vibration damage and unnecessary abrasion, can suitably increase milling surplus (Ap:10mm~30mm, Depending on machine tool chief axis power, depending on Tool in Cutting condition) cutter track corner must add arc transition, reduce cutter attack;
4, it inserts milling corner: when the features such as deep trouth, narrow slot need to use bigger draw ratio tool sharpening, being inserted using axial It is most advantageous to mill corner mode, it is possible to reduce vibration cutting increases Tool in Cutting rigidity.Axial, radial slack, which cannot be greater than, inserts milling Tool in Cutting parameter;It is unable to cut wound part base angle R;
5, finish-milling rib, edge strip top surface: rib, the processing of edge strip top surface are typically scheduled at after rough milling before finish-milling web, Working position rigidity is stronger at this time, increases cutting stability.It is divided into flat-topped rib, diagonal bar etc. again according to rib, edge strip shape.No matter Which kind of type requires to carry out according to following processing method: 1. being processed using climb cutting, avoids upmilling.2. diagonal bar is using unidirectional suitable Mill row butt formula, machine direction must from inclined-plane minimum point to highest point, to avoid cutter in downward processing blade tipping.
6, finish-milling web: plunge cut way must be that spiral is cut or cycloid is cut, and screw diameter and cut angle and must accord with Tool in Cutting parameter is closed, cuts speed is about normal process feed speed 50%, processing method is necessary for from the inside to the outside (Outward helical or Offset on part One-Way);Cutter track edit methods are consistent with vallecular cavity is rough milled;
7, finish-milling periphery: slot periphery axial stratification is processed in place using solid tool, it is contemplated that titanium alloy is by knife spy Property, it is radial to increase by one layer of 0.2~0.5mmm surplus light, one knife guarantee part size.Programmed method is milled using five axis sequence;Make With circular arc advance and retreat knife;Corner increases appropriate arc transition;It is processed using the multiple tooth solid tool of diameter 20mm or 25mmm;
8, finish-milling corner: the cutter for milling and having made corner in place, but having used when finish-milling slot periphery is inserted as Φ 20mm or Φ 25mm, nearby there are slotting milling remnants in side wall to corner, it is necessary to carry out corner finishing using diameter of phi 12mm solid tool, mainly Purpose connects side wall flat, is cut using axial stratification;The appropriate circular arc of corner, circular arc advance and retreat knife.

Claims (3)

1. a kind of TA15 titanium alloy frame class parts machining process, it is characterised in that:
(1), fabrication hole is bored;
(2), U bores prebored hole: being bored using indexable tool U and carries out prebored hole, drilling in each frame middle position of frame class part blank Mode gets into bottom acyclic patterns using one, it is necessary to full knife drilling, drilling depth than milling depth depth 1mm, and web there are Surplus;Maximum drilling depth is necessarily less than chip removal slot length;
(3), roughing vallecular cavity: processing method from inside to outside;Using the big cutting-in milling cutter processing of major diameter;To reduce cutter in penetration of a cutting tool It measures and generates impact vibration damage and unnecessary abrasion in lesser situation, cutter track corner must add arc transition, reduce knife Tool impact;
(4), it inserts milling corner: when the feature of deep trouth or narrow slot need to use big draw ratio tool sharpening, being turned using axial slotting milling Angle mode reduces vibration cutting, increases Tool in Cutting rigidity;Axial, radial slack, which cannot be greater than, inserts milling cutter cutting parameter, no It can cut wound part base angle;
(5), finish-milling rib, edge strip top surface: rib, edge strip top surface processing arrangement after rough milling before finish-milling web, at this time plus Ministry of worker's position rigidity is stronger, increases cutting stability;
It is divided into flat-topped rib, diagonal bar again according to rib, edge strip shape;
Above-mentioned rib, edge strip type require to carry out according to following processing method:
1. processing using climb cutting, upmilling is avoided;
2. diagonal bar uses unidirectional climb cutting row butt formula, machine direction must exist from inclined-plane minimum point to highest point to avoid cutter Blade tipping when processing downwards;
(6), finish-milling web: plunge cut way must be that spiral is cut or cycloid is cut, and screw diameter and cut angle and have to comply with Tool in Cutting parameter cuts 50% that speed is normal process feed speed, and processing method is necessary for from the inside to the outside;Cutter track editor Method is consistent with vallecular cavity is rough milled;
(7), finish-milling periphery: slot periphery axial stratification is processed in place using solid tool, the characteristic according to titanium alloy by knife, diameter Guarantee part size to one layer of 0.2~0.5mm surplus light, one knife must be increased;
Programmed method is milled using five axis sequence;Use circular arc advance and retreat knife;Corner increases appropriate arc transition;Using diameter 20mm or The multiple tooth solid tool of 25mm is processed;
(8), finish-milling corner: inserting milling has made corner in place, the cutter that when finish-milling slot periphery uses for Φ 20mm or Φ 25mm, Nearby side wall is remaining in the presence of milling is inserted for corner, it is necessary to which, using the progress corner finishing of diameter of phi 12mm solid tool, main purpose will Side wall connects flat, is cut using axial stratification.
2. TA15 titanium alloy frame class parts machining process according to claim 1, it is characterised in that: step (3), it is thick plus The type that the big cutting-in milling cutter of major diameter in work vallecular cavity uses is maize milling cutter, welding milling cutter or wavy-edge milling cutter.
3. TA15 titanium alloy frame class parts machining process according to claim 1, it is characterised in that: step (3), it is thick plus Increase milling surplus Ap:10mm~30mm in work vallecular cavity.
CN201711231669.1A 2017-11-30 2017-11-30 A kind of TA15 titanium alloy frame class parts machining process Active CN108098255B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711231669.1A CN108098255B (en) 2017-11-30 2017-11-30 A kind of TA15 titanium alloy frame class parts machining process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711231669.1A CN108098255B (en) 2017-11-30 2017-11-30 A kind of TA15 titanium alloy frame class parts machining process

Publications (2)

Publication Number Publication Date
CN108098255A CN108098255A (en) 2018-06-01
CN108098255B true CN108098255B (en) 2019-09-13

Family

ID=62208929

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711231669.1A Active CN108098255B (en) 2017-11-30 2017-11-30 A kind of TA15 titanium alloy frame class parts machining process

Country Status (1)

Country Link
CN (1) CN108098255B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109048206A (en) * 2018-10-17 2018-12-21 江西洪都航空工业集团有限责任公司 A kind of TA17 titanium alloy wall panel class parts machining process
CN109604685A (en) * 2018-11-30 2019-04-12 中国航发沈阳黎明航空发动机有限责任公司 A kind of thin wall high temperature alloy part lace processing method
CN109822140A (en) * 2019-01-30 2019-05-31 武汉船用机械有限责任公司 The processing method of curved surface slot
CN110238606A (en) * 2019-06-18 2019-09-17 成都飞机工业(集团)有限责任公司 A kind of processing method of the open vallecular cavity of web part
CN110625340A (en) * 2019-10-08 2019-12-31 江西洪都航空工业集团有限责任公司 TA15 titanium alloy support class forge piece blank part machining process
CN111168130B (en) * 2020-03-16 2021-04-09 沈阳飞机工业(集团)有限公司 Method for milling large-scale complex-structure AF1410 steel after quenching

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19752347A1 (en) * 1996-12-07 1998-06-10 Volkswagen Ag Vehicle rear axle rod system
CN102862021A (en) * 2012-08-19 2013-01-09 什邡市明日宇航工业股份有限公司 Method for manufacturing rudder assembly of aircraft by laser welding
CN104493431A (en) * 2014-11-19 2015-04-08 中国航空工业集团公司沈阳飞机设计研究所 Method for airplane folding mechanism to resist stress corrosion
CN105903766A (en) * 2016-06-07 2016-08-31 鑫鹏源智能装备集团有限公司 Production system and production method used for large-size titanium and titanium alloy square and rectangular pipes
CN206083411U (en) * 2016-06-07 2017-04-12 鑫鹏源智能装备集团有限公司 A production system that is used for jumbo size titanium and titanium alloy square tube

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19752347A1 (en) * 1996-12-07 1998-06-10 Volkswagen Ag Vehicle rear axle rod system
CN102862021A (en) * 2012-08-19 2013-01-09 什邡市明日宇航工业股份有限公司 Method for manufacturing rudder assembly of aircraft by laser welding
CN104493431A (en) * 2014-11-19 2015-04-08 中国航空工业集团公司沈阳飞机设计研究所 Method for airplane folding mechanism to resist stress corrosion
CN105903766A (en) * 2016-06-07 2016-08-31 鑫鹏源智能装备集团有限公司 Production system and production method used for large-size titanium and titanium alloy square and rectangular pipes
CN206083411U (en) * 2016-06-07 2017-04-12 鑫鹏源智能装备集团有限公司 A production system that is used for jumbo size titanium and titanium alloy square tube

Also Published As

Publication number Publication date
CN108098255A (en) 2018-06-01

Similar Documents

Publication Publication Date Title
CN108098255B (en) A kind of TA15 titanium alloy frame class parts machining process
CA2541901C (en) Cutting insert for high feed face milling
CN106132607B (en) Rotary cutting tool with polycrystalline diamond sintered body
CN109048206A (en) A kind of TA17 titanium alloy wall panel class parts machining process
RU2544720C2 (en) Single-piece cutter from two materials
CN102950314A (en) Alloy drilling reamer
CN203109260U (en) Turning tool for groove machining on automobile engine
CN105945520B (en) A kind of cross holes thin wall special-shaped inner hole of cylinder processing method
CN205496646U (en) Ream that drills and reams integration cutter
CN200981131Y (en) Drilling and countersinking composite milling cutter
CN106624080B (en) A kind of micro- tooth Double-margin brill ream one drill bit of ladder
JPH09309020A (en) Three-dimensional machining cemented solid end mill
CN106001648A (en) Turning/milling blade for machining dead-hard steel special-shaped part
CN110193704A (en) A kind of Milling Process technique of 15-5PH solid solution steel angle-closure chamber class part
CN203711944U (en) Durable drill
CN206326170U (en) Semifinishing milling cutter
CN108655427A (en) A kind of indexable turnning and milling composite blade of heavy cutting
CN206296476U (en) A kind of efficient steel swarf-removing tool of heavy cutting
CN103480894B (en) Milling and drilling integrated tool for processing salt-core
CN205733183U (en) A kind of high strength cemented carbide milling cutter of band chip-breaker
CN204194894U (en) A kind of platform reaming spiral bit continuously
CN201217096Y (en) Butt mill with gradient core radii and smoothing shock-absorption blade
CN103920941B (en) Gear milling cutter device
CN106735360A (en) A kind of precise high-efficiency small-bore boring cutter
CN207710013U (en) A kind of PCD reamers

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant