Rapid trial cutting and cutting parameter optimization method for numerical control milling cutter

A technology of cutting parameters and CNC milling, which is applied in the direction of milling machine equipment, manufacturing tools, automatic control devices, etc. Eliminate quality risks, avoid repeated modification of processing procedures, and improve trial cutting efficiency

Active Publication Date: 2021-07-30
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ① In order to achieve better cutting performance of different tools, programmers need to modify the processing program repeatedly according to the cutting parameters provided by different tool manufacturers, which increases the workload of programmers, and the tool trial cutting cycle is long;
[0005] ②Using the final product delivered to the customer for tool trial cutting, for the factory, there is a great product quality risk;
[0006] ③In the production site of the factory, there is generally no force measuring equipment and tool wear testing equipment required for professional tool test cutting, and it is impossible to use the laboratory's "cutting force and tool flank wear" and other indicators to perform cutting of the tested cutting tool performance evaluation

Method used

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  • Rapid trial cutting and cutting parameter optimization method for numerical control milling cutter
  • Rapid trial cutting and cutting parameter optimization method for numerical control milling cutter
  • Rapid trial cutting and cutting parameter optimization method for numerical control milling cutter

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Experimental program
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Effect test

Embodiment 1

[0045] This embodiment provides a method for rapid trial cutting and cutting parameters optimization of CNC milling tools, which is suitable for production sites, and includes the following steps:

[0046] Step 1. Design as figure 2 The shown inclined block is used as the processed standard trial cutting piece 2 of the cutting tool 1 to be tested, and the angle of the inclined plane is 10-15 degrees.

[0047] Step 2: Install the general-purpose vise on the machine table 3 and align it, and use the vise 4 to clamp the standard trial-cut piece to establish a processing coordinate system.

[0048] Step 3: call the standard trial cutting processing program, and modify the cutting parameter variables of the standard trial cutting processing program as required. The standard trial cutting process is shown in Table 1.

[0049] Among them, the standard trial cutting processing program is designed with a macro program, and the main axis speed Vc, tool diameter D, tool feed per tooth...

Embodiment 2

[0077] On the basis of embodiment 1, more specifically, according to the reference cutting parameters provided by the tool supplier and the processing experience of the enterprise, such as, the cutting line speed Vc of a certain tool (diameter d=10mm, number of teeth Z=5) processing superalloy material =60~80m / min, feed per tooth Fz=0.05~0.12mm / tooth, then the calculation method of the optimal feed per tooth Fz and cutting linear speed Vc of the tool is as follows:

[0078] Parameter selection for the first experiment: According to the principle of the golden section method "(big-small)*0.618+small", that is

[0079] Fz1=((0.12-0.05)*0.618)+0.05≈0.093;

[0080] Vc1=((80-60)*0.618)+60≈72.36

[0081] Parameter selection for the second experiment: According to the principle of the golden section method, "the next point is selected as: (big + small - previous point)", that is:

[0082] Fz2=0.12+0.05-0.093=0.077

[0083] Vc2=80+60-72.36=67.64

[0084] Parameter selection for th...

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Abstract

The invention discloses a rapid trial cutting and cutting parameter optimization method for a numerical control milling cutter, and belongs to the technical field of machining. According to the method, in a production field, a standard trial cutting piece is used for trial cutting for different brands of trial cutting cutters, and the machining performance of the different brands of trial cutting cutters under the same working condition can be rapidly obtained by comparing the machined surface roughness of the trial cutting piece; and a golden section optimal selection experiment method is adopted to quickly obtain better cutting parameters of the cutting cutter, so that the trial cutting efficiency of the cutter is improved, the trial cutting period of the cutter is shortened, and the quality risk of trial cutting of a product is eliminated.

Description

technical field [0001] The invention relates to the field of metal cutting, in particular to a method for rapid trial cutting and cutting parameter optimization of a numerically controlled milling tool. Background technique [0002] In the metal cutting process, the tool completes the cutting work, and its cutting performance directly affects the processing cost, processing quality and efficiency. In order to meet the rapid development of CNC technology, the update of CNC tool technology is changing with each passing day. Each tool manufacturer has developed different tool materials, coatings and tool geometric parameters for different workpiece materials, and each has its own characteristics. However, the application of CNC tools is uneven. In enterprises with good application of CNC machining technology, certain CNC tool selection specifications and tool cutting parameter libraries have been formed for use by CNC programmers in the workshop; In enterprises with poor appli...

Claims

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Application Information

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IPC IPC(8): B23C3/00B23Q15/013B23Q15/08
CPCB23C3/00B23Q15/013B23Q15/08
Inventor 陈思涛温良苟绍轩李成华韩文强陈伟庞敏汪小东
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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