High-efficiency CNC machining process of titanium alloy thin-walled web for aircraft wing

A processing technology and technology of titanium alloy, which is applied in the field of high-efficiency numerical control processing technology of titanium alloy thin-walled web of aircraft wings, can solve the problems of cutting heat not being carried away by chips, high temperature of the tool tip, and wear of the blade surface, etc. Achieve the effect of improving rigidity, improving surface roughness and reducing cutting force
CN104259774BInactive Publication Date: 2017-02-15HUANGHE S & T COLLEGE
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HUANGHE S & T COLLEGE
Publication Date
2017-02-15
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A plane wing titanium alloy thin-wall web efficient numerical control machining technology comprises the following steps that (1) blanking is carried out; (2) web outer contour machining is carried out, and an ear piece for locating is machined; (3) a web is clamped, and a cavity on the front face of the web is machined; (4) a web side wall is machined; (5) web quick converting is carried out, and a cavity on the back face of the web is machined; (6) the locating ear piece is removed by milling; and (7) quality testing is carried out. The rigidity of a machining technology system is improved, unstressed machining is achieved, by optimized design of a feed track, the stability of a machining process is improved, machining speed is increased, titanium alloy shallow cutting large feeding milling technology parameters are used, heat deforming during machining is lowered, rectifying processes are omitted, the metal removing rate is improved by 30%-50%, finally, machining efficiency is obviously improved, the clamping time of workpieces is obviously shortened through a quick-reloading technology, the repeated locating accuracy of clamping is guaranteed, and accordingly numerically-controlled machine tool machining efficiency is greatly improved.
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Description

technical field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a high-efficiency numerical control processing technology for thin-walled titanium alloy webs of aircraft wings. Background technique

[0002] Titanium alloy has high specific strength, its strength is close to that of ordinary steel, and its density is 4.5g / cm 3 ; High thermal strength, 450 ~ 500 ℃ strength remains high; good corrosion resistance, in humid atmosphere and seawater, corrosion resistance is better than stainless steel; chemical activity is large, easy to form with O and N in the atmosphere during processing Hardened layer; the thermal conductivity is small, only 1 / 5 of that of iron, and the temperature in the cutting zone is high; the elastic modulus is small, the rebound is large during cutting, and the flank wear is serious.

[0003] Aircraft wing components must have sufficient strength, stiffness and fatigue resistance to resist defor...

Claims

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