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Orthogonal turn-milling method for rotary part

A rotary parts, orthogonal turning and milling technology, applied in the field of mechanical processing, can solve the problems of difficulty in controlling the axial thrust of the milling cutter, and the relationship between the thrust and machining accuracy, and achieve a cost-effective effect

Inactive Publication Date: 2009-09-09
冯付良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, it is considered that the higher the rotational speed of the milling cutter and the rotational speed of the rotating parts in turning and milling, the better, that is, the rotational speed is directly proportional to the machining accuracy, but after experiments, it is found that the surface morphology of the machined parts and the rotational speed are not purely linear. For example, it is often difficult to control the axial thrust of the milling cutter when the workpiece rotates one circle, and it is not easy to control the relationship between the thrust and the machining accuracy, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In this embodiment, the method of machining accuracy in orthogonal turning and milling is adopted. In the orthogonal turning and milling of rotary parts, the end mill and the rotary part rotate separately. The end mill has a bottom edge and a side edge, and its The feature is that during the orthogonal turning and milling process, the technological parameters of the bottom edge are as follows:

[0028] ① The edge angle of the bottom edge of the end mill is 1°C;

[0029] ② The eccentricity of the end mill is greater than 7.5mm;

[0030] ③ The axial advance of the end mill is 1 / 5 of the tool diameter 50mm = 10mm.

[0031] ④ The ratio of the speed N1 of the end mill to the speed N2 of the rotating part is N1 / N2=80.

[0032] The roughness of the workpiece processed under the above parameters is 15.1 μm.

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PUM

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Abstract

The invention relates to an orthogonal turn-milling method for a rotary part. In the orthogonal turn-milling machining of the rotary part, an end mill and the rotary part rotate respectively; and the end mill is provided with a bottom blade and a side blade. The method is characterized in that in the process of orthogonal turn-milling machining, the bottom blade comprises the following process parameters: (1) a blade angle of the bottom blade of the end mill is more than 0 and less than 2 degrees; (2) the eccentric amount of the end mill is more than 4 and less than 9 mm; (3) the axial pushing amount of the end mill is 1 / n of the diameter of a cutting tool, and the n is a natural number more than 1; and (4) the ratio N1 / N2 of the rotational speed N1 of the end mill to the rotational speed N2 of the rotary part is more than 60. The orthogonal turn-milling method for the rotary part is an optimal combination of a set of process parameters and can expend less cost to reach the best machining effect of the rotary part in the turn-milling machining.

Description

technical field [0001] The invention relates to mechanical processing, in particular to turning and milling processing. During the orthogonal turning and milling processing, various processing parameters are controlled to improve the processing accuracy of rotary parts. Background technique [0002] Turning and milling processing is often used in the processing of some large-sized, special surface-shaped rotating parts, such as impellers and screws. The surface precision requirements of these parts are generally high, and the processing efficiency is low. Machining parameters are important factors affecting the quality and efficiency of machining surfaces. Therefore, it is of great practical significance to study the influence of turning and milling machining parameters on the surface morphology of workpieces for improving machining quality and machining efficiency. [0003] Turning and milling is to use the synthetic motion of milling cutter rotation and workpiece rotation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23G1/34B23C3/04B23Q15/00
Inventor 冯付良
Owner 冯付良