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A Cutting Force Prediction Method for Rotary Ultrasonic Vibratory Grinding

A technology of cutting force prediction and rotational ultrasound, applied in prediction, instrumentation, data processing applications, etc.

Active Publication Date: 2021-06-01
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still a lack of a cutting force prediction method that also considers the removal mode of ductile brittleness

Method used

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  • A Cutting Force Prediction Method for Rotary Ultrasonic Vibratory Grinding
  • A Cutting Force Prediction Method for Rotary Ultrasonic Vibratory Grinding
  • A Cutting Force Prediction Method for Rotary Ultrasonic Vibratory Grinding

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0040] Rotary ultrasonic vibration grinding is a processing method that combines traditional grinding and ultrasonic processing. Compared with traditional grinding, it has the advantages of small cutting force, less processing damage and less tool wear, and is especially suitable for hard and brittle Processing of materials.

[0041]The cutting f...

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Abstract

The embodiment of the present invention provides a method for predicting cutting force in rotary ultrasonic vibration grinding, which respectively establishes a first single-grinding particle-direction cutting force model in a plastic flow removal mode and a second single-grinding particle-direction cutting force model in a brittle fracture removal mode. , combined with the brittleness removal proportional coefficient, the single-grinding particle size cutting force model is obtained; considering that the workpiece is subjected to the combined action of the single-grinding particle size force and friction force during the rotary ultrasonic vibration grinding process, by calculating all the grinding particle size direction forces and The sum of the components of the friction force in the direction of the main cutting force is used to obtain the main cutting force value; finally, the adjustment coefficient C is introduced to ensure that the brittleness removal proportional coefficient is greater than 0, so as to establish the cutting force F and the adjustment coefficient C, material properties The relationship between parameters, tool parameters, ultrasonic vibration parameters and machining parameters; the cutting force prediction method provided by the present invention is more in line with the actual machining process, and can improve the prediction accuracy of the cutting force in rotary ultrasonic vibration grinding.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of rotary ultrasonic vibration grinding, and in particular to a method for predicting cutting force of rotary ultrasonic vibration grinding. Background technique [0002] Carbon fiber composite materials have excellent characteristics such as high specific strength, high specific modulus, and low density, so they are more and more widely used in aerospace, automobile, transportation and other fields. Although such materials are generally manufactured in near-net shape, in order to meet the processing accuracy requirements of the assembly process, secondary processing such as milling, drilling, and grinding is still required. However, the reinforced carbon fiber and the matrix resin in carbon fiber composites have significantly different physical and mechanical properties, resulting in anisotropy and discontinuous distribution of phases, making it prone to problems such as fiber breakage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/04G06Q10/04G06F30/20G06F113/26G06F119/14
CPCB24B1/04G06Q10/04G06F30/20
Inventor 袁松梅石海燕李真陈博川朱光远李麒麟
Owner BEIHANG UNIV
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