CN202070799U

CN202070799U - Overall hard alloy hole expanding drill for sandwich material

Info

Publication number: CN202070799U
Application number: CN2011200646114U
Authority: CN
Inventors: 张秀云
Original assignee: Shenyang Aircraft Industry Group Co Ltd
Current assignee: Shenyang Aircraft Industry Group Co Ltd
Priority date: 2011-03-14
Filing date: 2011-03-14
Publication date: 2011-12-14
Anticipated expiration: 2021-03-14

Abstract

The utility model relates to a solid carbide alloy hole expanding drill for sandwich material, which is used for processing hole parts made of composite material, titanium alloy, steel sandwich material and the like. The hole expanding drill comprises a front leading part, a cutting part, a rear leading part and a handle, wherein a cutter is made of k30 solid carbide; and the geometric parameters of the cutter of the cutting part are as follows: the cutting taper angel Phi is 15 degrees, the tool orthogonal rake is 5 degrees, the tool orthogonal clearance is 14 degrees, the helical angle Omega is 15 degrees, and the width of a circumferential margin F 1 is 0.1 mm. The hole expanding drill not only can be used for processing the hole parts made of composite material, titanium alloy, steel sandwich material and the like, but also meets the hole accuracy requirements of the parts as well as the requirement for surface quality, and the solid carbide alloy hole expanding drill solves the technical difficulties in processing and assembling.

Description

Sandwich material whole hard alloy reamer

Technical field

The utility model relates to a kind of sandwich material whole hard alloy reamer, is used for machining composite material, titanium alloy, firm sandwich material hole type parts with leading reamer before and after the whole hard alloy.

Background technology

Along with in recent years both at home and abroad the fast development of aviation industry, new material especially the new material of property in the extensive use of aircraft industry, to the new difficult problem of processing and manufacturing agency.The processing of composite, titanium alloy, three kinds of materials of steel newly each one of energy is identical, but often runs into the hole processing problems of these three kinds of sandwich materials in the aircraft assembling, guarantee that the surface quality in hole moral dimensional accuracy and hole is not easy.Because the foundation of standard as Tool Design also do not found in the application of new material at present, the processing steel part is with the carbide cutter tool reamer anterior angle γ of negative rake=-15 °, relief angle α=10 °, helical angle ω=0 °.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of sandwich material whole hard alloy reamer, this reamer is machining composite material, titanium alloy, steel sandwich material hole type parts simultaneously, and can satisfy the hole required precision and the surface quality requirement of part, solve the technical barrier in the assembling processing.

For overcoming the above problems, concrete technical scheme of the present utility model is as follows: a kind of sandwich material whole hard alloy reamer, comprise preceding guiding, cutting tip and back guiding and shank, and cutter material is the K30 whole hard alloy; The geometric parameter of the cutter of cutting tip is: taper lead angle Ф=15 °, anterior angle γ=5 °, relief angle α=14 °, helical angle ω=15 °, circumference margin width f1=0.1mm.

This sandwich material adopts said structure with the whole hard alloy reamer, solved the reaming problem that composite, titanium alloy, three kinds of material assemblings of steel interlayer are processed, in the design of tool structure parameter and geometric parameter, carried out innovative design, the durability of cutter is improved greatly, reduced production cost simultaneously.

Description of drawings

Fig. 1 is sandwich material whole hard alloy reamer structural representation.

Fig. 2 is the A – A cutaway view of Fig. 1.

Fig. 3 is the B – B cutaway view of Fig. 1.

Fig. 4 is the C – C cutaway view of Fig. 1.

The specific embodiment

Shown in Fig. 1～4, a kind of sandwich material whole hard alloy reamer, guiding 1 before comprising, cutting tip 2 and back guiding and shank 3, cutter material is the wearability that this material of K30 whole hard alloy can improve cutter; The geometric parameter of the cutter of cutting tip 2 is: taper lead angle Ф=15 °, to reduce cutting resistance; Anterior angle γ=5 ° strengthen the heat resistanceheat resistant performance of cutting edge rigidity and cutting edge; The friction of back knife face and cutting surface is reduced in relief angle α=14 °; Helical angle ω=15 ° inaccuracy with the correction pre-manufactured hole, thus comparatively accurately aperture obtained; Circumference margin width f1=0.1mm, the sticking cutter and the Composites Delamination of the sharpness emulation titanium alloy of increase blade.

Claims

1. a sandwich material whole hard alloy reamer comprises preceding guiding (1), cutting tip (2) and back guiding and shank (3), and it is characterized in that: cutter material is the K30 whole hard alloy; The geometric parameter of the cutter of cutting tip (2) is: taper lead angle Ф=15 °, anterior angle γ=5 °, relief angle α=14 °, helical angle ω=15 °, circumference margin width f1=0.1mm.