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Method for machining special-shaped part hole

A processing method and part technology, applied in the processing field of special-shaped part holes, can solve the problems of low processing quality and efficiency, high cost, and achieve the effects of avoiding premature wear, good strength, and overcoming the problem of unbalanced cutting force.

Inactive Publication Date: 2019-12-03
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for processing holes in special-shaped parts, which solves the defects of low processing quality, low efficiency and high cost when the existing holes are in special-shaped parts

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  • Method for machining special-shaped part hole
  • Method for machining special-shaped part hole
  • Method for machining special-shaped part hole

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] A method for processing holes in special-shaped parts provided by the present invention comprises the following steps:

[0028] Step 1, machining center hole;

[0029] Step 2, drilling on the basis of the center hole processed in step 1, until the drilling leaks and enters the special-shaped part, stop feeding, so that the coolant can flow out;

[0030] Step 3: On the basis of the drilled holes obtained in Step 2, mill the holes until they pass through up and down, and the diameter of the holes meets the process requirements.

[0031] Wherein, in step 1, a center drill is used to drill the center hole, and the process parameters of the center drill are 600r / min, 30mm / min;

[0032] In step 2, the drill bit is φ6, and its process parameters are 330r / min, 20mm / min;

[0033] In step 3, the milling hole uses a φ7 rod milling cutter with end teeth; when m...

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Abstract

The invention provides a processing method of a special-shaped part hole, which comprises the following steps of: 1, drilling is performed in a position of a to-be-processed hole until the position isdrilled through and cutter feeding is stopped until a special-shaped place is entered; 2, on the basis of the drilled hole obtained in the step 1, hole milling is conducted till the hole is through up and down, and the diameter of the hole meets the technological requirement; according to the machining method, the machining step of drilling and hole milling is adopted, in the drilling process, drilling through of the hole is only required to be stopped, and further machining of the asymmetric special-shaped part by a drill bit is reasonably avoided; due to hole drilling through, cooling liquid can normally flow through a hole to cool a cutter and take away heat generated by cutting; then, an end mill with an end edge is used for next-step machining; a milling cutter is selected, the highstrength of the milling cutter is mainly considered, the problem of unbalanced cutting stress caused by a special-shaped part can be well solved, so that the straightness and the position degree of ahole are stably guaranteed, and the situation that the final size requirement of the hole is affected due to the fact that the milling cutter is abraded too early when direct milling is conducted is avoided through the process.

Description

technical field [0001] The method belongs to the field of hole processing, and in particular relates to a method for processing holes in special-shaped parts. Background technique [0002] In actual production, the orifice of some parts is on the arc surface, and the materials of the parts themselves are mostly high-temperature alloy materials that are difficult to process. The conventional processing method is: punching center hole-drilling-boring-reaming. During the machining process of the hole, when the tool cuts to the arc surface, due to the asymmetric structure of the part, the circumferential distribution of the material is uneven, resulting in The tool is in a state of lateral force, and the cutting edge of the drill bit, boring tool, etc. often breaks during processing, and the hole position shifts, which seriously affects the quality and efficiency of mass production. The shortcomings of the original conventional processing method are mainly reflected in: [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P13/02
CPCB23P13/02
Inventor 程冬伟罗俊波杨桢孙林虎孙建红李延峰王玉侠刘毫
Owner AECC AVIATION POWER CO LTD
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