Comprehensive evaluation method of material machinability

A technology of cutting processing and comprehensive evaluation, applied in the direction of instruments, computer control, simulators, etc., can solve the problems of not reflecting the relationship between materials well, reflecting the lack of cutting performance, reliability and practicability of materials, and achieving Concise and comprehensive evaluation analysis, rationalization of weights, and obvious effects of evaluation differentiation

Active Publication Date: 2017-06-27
XI AN JIAOTONG UNIV +1
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Problems solved by technology

That is to compare the machinability of a certain material with that of another material. Generally, the 45 steel in the normalized state is used as the benchmark to evaluate the machinability of other materials. It is relatively simple, clear, convenient and accurate, and it is also At present, the most widely used method can better investigate the cutting performance of materials; however, it cannot

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  • Comprehensive evaluation method of material machinability
  • Comprehensive evaluation method of material machinability
  • Comprehensive evaluation method of material machinability

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[0074] The invention is a comprehensive evaluation method for the cutting performance of materials (engineering materials). See figure 1 As shown, the present invention includes the following steps:

[0075] Step 1. Determine the evaluation index of the cutting performance of the evaluation object (that is, the evaluation material of the present invention, the same below). These evaluation indexes usually have the most significant impact on the cutting performance of the evaluation object and the most widely used, including but not Limited to hardness and tensile strength σ b , Elongation δ, impact toughness a k , Thermal conductivity κ, etc.;

[0076] Step 2. Based on the evaluation index determined for the evaluation object, measure the evaluation index of the cutting performance of the evaluation object, such as tensile strength σ b And elongation δ are obtained by tensile test based on digital image correlation technology, thermal conductivity κ is measured by thermal conducti...

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Abstract

The invention discloses a comprehensive evaluation method of material machinability. The material is an object of evaluation. The evaluation method comprises a step 1 of determining evaluation indexes of the machinability of the object of evaluation; a step 2 of measuring the evaluation indexes of the machinability of the object of evaluation; a step 3 of dividing, according to the influence of the evaluation indexes of the object of evaluation on the machinability, the evaluation indexes into useful indexes and useless indexes; a step 4 of standardizing the evaluation indexes of the object of evaluation; a step 5 of normalizing the standardized evaluation indexes of the object of evaluation; a step 6 of determining, based on a combination weighting method, weights of the evaluation indexes of the object of evaluation; a step 7 of drawing a radar map of the machinability of the object of evaluation; and a step 8 of evaluating the machinability of the object of evaluation comprehensively according to the radar map.

Description

technical field [0001] The invention relates to a comprehensive evaluation method for material cutting performance. Background technique [0002] With the rapid development of science and technology, various new and high-performance engineering materials have gradually come out. How to apply these new engineering materials to the industry reasonably, reliably and make the best use of them requires a reasonable processing technology based on specific engineering materials. [0003] The establishment of a reasonable processing technology for engineering materials depends on the cutting performance of the material (that is, the degree of difficulty of the material during cutting). That is to say, to formulate a reasonable processing technology for a new material, we must first correctly understand the cutting performance of the new material. Only the processing technology formulated according to its specific performance is reasonable, correct and effective. [0004] The under...

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Application Information

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IPC IPC(8): G05B19/408
CPCG05B19/4086G05B2219/35356
Inventor 孙涛梁晋钟铃向桢李登万
Owner XI AN JIAOTONG UNIV
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