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Grinding process assessment method based on reliability

A reliable and grinding technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as lack of reliability effects and lack of in-depth research on process defects

Active Publication Date: 2015-06-24
扬州制汇互联信息技术有限公司
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AI Technical Summary

Problems solved by technology

Even for product research, the pass rate of processed products is used as an indicator of process reliability, and there is a lack of research on the impact of process on product reliability in use
At the same time, product reliability in use is usually evaluated through design methods or products that have failed, and there is a lack of in-depth research on process defects

Method used

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  • Grinding process assessment method based on reliability
  • Grinding process assessment method based on reliability
  • Grinding process assessment method based on reliability

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Embodiment Construction

[0063] In one embodiment of the present invention, a reliability-based grinding process evaluation method is provided. Grinding and processing a batch of tensile samples, in order to obtain higher reliability, determine the best grinding process parameters. figure 2 The contact situation of abrasive grain and workpiece in the grinding process of the present invention is shown; image 3 It is the tensile sample to be processed, the two ends are rough machined, and the middle part is obtained by grinding.

[0064] Table 1 Dimensions of each part of the circular scale sample mm

[0065]

[0066] See figure 1 , a reliability-based grinding process evaluation method of the present invention, the specific steps of the method are as follows:

[0067] Step 1: According to the grinding process, the failure analysis of grinding process defects is carried out from three aspects: equipment characteristics, workpiece characteristics, and processing technology, and the grinding proce...

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Abstract

A grinding process assessment method based on reliability comprises the steps that 1, grinding process defect and failure analysis is carried out on device characteristics, workpiece characteristics and the machining process in the grinding process, grinding process FMEA is built, and typical defects are found; 2, according to the typical defects of the grinding process, computer finite element analysis is carried out, failure physics causing the typical defects is found, and failure physics analysis is further carried out on grinding process products; 3, grinding process parameters are designed, actual machining is carried out, and the product reliability is assessed through the grinding process parameters; 4, a reliability simulated test is carried out on the machined products, related mechanical properties are tested out, a degradation rate curve of key physical characterization Q is made, and a parameter degradation model of Q is obtained; 5, according to the above related process parameters, the key physical characterization Q and related mechanical property data, a reliability model is built, therefore, the grinding process is assessed based on the reliability, and bases are provided for process optimization design.

Description

technical field [0001] The invention relates to a reliability-based grinding process evaluation method, which takes the inherent reliability of the product as the optimization target, utilizes the method of failure physics, known grinding parameters, and service conditions, and conducts an evaluation of the grinding process. Evaluate, and find the key factors that affect the inherent reliability of the product. It is suitable for the fields of grinding process design and grinding process optimization. Background technique [0002] Product reliability is designed, manufactured, and managed. The reliability index requirements determined by product reliability design must be realized in the manufacturing process, and the process reliability of the product processing process has a significant impact on the performance of the product. Therefore, it is of great significance to study the process reliability of product processing. [0003] At present, the research on product proc...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 戴伟卢志远赵宇
Owner 扬州制汇互联信息技术有限公司
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