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Optimum design method for anterior angle and relief angle of groove milling tool

A technology that optimizes design and tool rake angle. It is used in calculations, special data processing applications, instruments, etc. It can solve problems such as difficulty in ensuring optimization accuracy and consideration of instantaneous average temperature of tools.

Inactive Publication Date: 2016-01-06
HENAN POLYTECHNIC UNIV
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  • Abstract
  • Description
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Problems solved by technology

Tool temperature has an extremely important impact on tool life. The existing tool geometric structure parameter optimization methods do not consider the instantaneous average temperature of the tool, and it is difficult to ensure high optimization accuracy.

Method used

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  • Optimum design method for anterior angle and relief angle of groove milling tool
  • Optimum design method for anterior angle and relief angle of groove milling tool
  • Optimum design method for anterior angle and relief angle of groove milling tool

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Embodiment Construction

[0069] The rake angle and back angle optimization design method of the groove milling tool of the present invention comprises the following steps,

[0070] (1) Firstly, according to the processing conditions, determine the combination of rake angle and back angle of various tools that can be used;

[0071] (2) Determine the physical performance parameters of cutting tools and workpieces by consulting literature or experimental tests;

[0072] (3) According to the actual cutting conditions, the combinations of cutting parameters to be analyzed are determined through the orthogonal experiment design method;

[0073] (4) Convert milling to right-angle free cutting, use commercial finite element software, set various relevant parameters, and perform two-dimensional right-angle free cutting finite element simulation;

[0074] (5) According to the finite element simulation results, the heat flux on the tool and the tool-chip contact length are calculated;

[0075] (6) Through theo...

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Abstract

The present invention discloses an optimum design method for an anterior angle and a relief angle of a groove milling tool, and belongs to the technical field of mechanical manufacturing. The method is characterized by: by comparing and analyzing a temperature value of the tool under different combination conditions of the anterior angle and the relief angle, obtaining an optimal anterior angle and an optimal relief angle of the tool. A theoretical calculation of the tool temperature and an orthogonal experiment design method are combined by the method of the invention to optimize the anterior angle and the relief angle of the tool, and an optimize accuracy is higher. According to the present invention, the method is free from a cutting experiment, so that an optimization period and an optimization cost is greatly reduced. The method of the present invention can be widely applied in a groove milling condition, and in various matching phenamena of the tool and a workpiece material.

Description

technical field [0001] The invention belongs to the technical field of mechanical design and manufacture, and in particular relates to an optimal design method for a rake angle and a back angle of a slot milling cutter. Background technique [0002] Slot milling cutters have been widely used in the machinery manufacturing industry for milling to complete metal forming. In order to improve production efficiency and maintain competitiveness, higher and higher cutting speeds are applied in scientific research and manufacturing. The ever-increasing cutting speed leads to a sharp increase in tool temperature during cutting and has a negative impact on tool life and even on the machined surface. Under high-speed cutting conditions, the cutting temperature dominates the tool failure mechanism which plays a major role. Tool geometry parameters such as tool rake and relief angles have a significant impact on tool temperature during cutting. Therefore, in order to obtain lower tool...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 崔晓斌郭景霞闫艳燕
Owner HENAN POLYTECHNIC UNIV
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