Processing method to prevent deformation of mounting edge of high-precision large-scale titanium alloy thin-walled casting

A technology of thin-walled castings and processing methods, applied in metal processing equipment, metal processing machinery parts, positioning devices, etc., can solve the problems of no processing technology, achieve the effects of reducing cutting heat, reducing machine stress, and solving deformation

Inactive Publication Date: 2015-10-28
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
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  • Application Information

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Problems solved by technology

This kind of technology has never existed before, and it is the first contact, and there is no similar processing technology for reference

Method used

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  • Processing method to prevent deformation of mounting edge of high-precision large-scale titanium alloy thin-walled casting
  • Processing method to prevent deformation of mounting edge of high-precision large-scale titanium alloy thin-walled casting
  • Processing method to prevent deformation of mounting edge of high-precision large-scale titanium alloy thin-walled casting

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Embodiment Construction

[0021] An embodiment of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] In the embodiment of the present invention, the mounting seat is a large thin-walled titanium alloy part with a complex structure, with a maximum diameter of φ560, which not only requires extremely high dimensional accuracy and shape and position tolerance, but also has 55 uniformly distributed φ6 holes on the periphery of the φ184 inner hole. Small holes, the wall thickness of the thinnest part is only 3mm, and the total length is 85. Bore size for mounting bearings Inner hole size for installing graphite ring The coaxiality between the two inner holes is 0.03, the runout of the bearing rib to the inner hole is 0.015, and the reference of the outer circle of the inner hole of the bearing is The coaxiality is 0.03, and the outer circle reference of the installation side The beat is 0.03.

[0023] A processing method for preventing the ...

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Abstract

The invention provides a machining method for preventing high-precision large titanium alloy thin-wall casting mounting edge deformation and belongs to the technical field of titanium alloy machining. The method has the advantages that process routes are adjusted, drilling and arc-shaped groove milling are performed in advance, stabilization is added, and machining stress can be reduced; manual machining is changed into numerical control machining, the numerical control program not intervened the whole process is used, allowance is removed evenly, and large machining stress caused by manual cutter compensation can be avoided; a lengthened cutter rod is used, two inner holes and the small end face are machined simultaneously, and coaxiality of the two inner holes and jump of the small end face are guaranteed; the clamping scheme of a clamp is modified, deformation caused by part oscillation during machine can be avoided, the technical bottleneck of large titanium alloy thin-wall casting mounting edge deformation is broken through, and design requirements of parts are satisfied.

Description

technical field [0001] The invention belongs to the technical field of titanium alloy mechanical processing, and in particular relates to a processing method for preventing deformation of mounting edges of high-precision large-scale titanium alloy thin-walled castings. Background technique [0002] In mechanical processing technology, especially in the processing and manufacturing of high-precision large-scale titanium alloy thin-walled castings, the deformation of the mounting edge has always been a major technical difficulty, which seriously affects the pass rate of the workpiece. This kind of technology has never existed before, and it is the first contact, and there is no similar processing technology for reference. The titanium alloy mounting seat is an important part, with complex structure, high dimensional accuracy, many and extremely strict technical requirements, the wall thickness of the mounting side is less than 3mm, the profile of the radial plate is 3.5mm, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P23/04
CPCB23P15/00B23Q3/062
Inventor 郑琪然邓昶崔建民史前凯文国军
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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