Foshan Tongtaisheng CNC machining manufacturer explained: Factors affecting the processing of thin-walled parts
2021-10-11
Foshan Tongtaisheng CNC machining manufacturer explained: Factors affecting the processing of thin-walled parts
- Categories:CNC machining encyclopedia
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- Time of issue:2021-10-11
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(Summary description)Thin-walled parts have the characteristics of light weight, material saving, compact structure, etc.; they have been widely used in various industrial sectors such as aviation, automobiles, machinery, etc.; but thin-walled parts have poor rigidity and weak strength, and it is difficult to control deformation during processing. It will also produce cutting vibration, which makes it difficult to guarantee the mechanical quality of the parts.
Foshan Tongtaisheng CNC machining manufacturer explained: Factors affecting the processing of thin-walled parts
(Summary description)Thin-walled parts have the characteristics of light weight, material saving, compact structure, etc.; they have been widely used in various industrial sectors such as aviation, automobiles, machinery, etc.; but thin-walled parts have poor rigidity and weak strength, and it is difficult to control deformation during processing. It will also produce cutting vibration, which makes it difficult to guarantee the mechanical quality of the parts.
- Categories:CNC machining encyclopedia
- Author:
- Origin:
- Time of issue:2021-10-11
- Views:0
Information
Thin-walled parts have the characteristics of light weight, material saving, compact structure, etc.; they have been widely used in various industrial sectors such as aviation, automobiles, machinery, etc.; but thin-walled parts have poor rigidity and weak strength, and it is difficult to control deformation during processing. It will also produce cutting vibration, which makes it difficult to guarantee the mechanical quality of the parts.
The processing quality of thin-walled parts is affected by many factors
The biggest difficulty in the processing of thin-walled parts is processing deformation. Many factors cause this problem in the processing process:
1. Cutting force
In the process of parts processing, the 90° external turning tool generally used will cause large cutting force, radial and axial cutting force during rough machining due to the problem of machining allowance. In addition, machining residual stress will appear during parts processing, which is formed by the extrusion of the tool during parts processing. At the same time, if the chip removal is not smooth during the machining process, it will also cause friction between the rake face and the back of the workpiece, and the cutting force , Reasonable axial force, radial force and residual stress of workpiece can easily cause deformation of parts.
2. Cutting heat
The function consumed by deformation and friction in the cutting process becomes heat energy; the cutting heat is transferred to the tool, chip, workpiece and surrounding medium, making them high in temperature, causing thermal deformation of the workpiece and tool; the effect of cutting heat on the cutting temperature To affect the cutting process, the cutting temperature depends on the amount of heat generated and the speed of heat transfer. The cutting temperature has a great influence on the thermal deformation of the workpiece.
3. Machine tool performance, cutting vibration
The rigidity of the machine tool and the fixture of the machine tool will directly affect the force of the thin-walled parts. There will also be strong relative vibration between the workpiece and the tool due to the stiffness of the opportunity. This vibration not only affects the increase in surface roughness during the processing of thin-walled parts. Large or meditational ripples; serious deformation of the surface and processed parts.
4. Tool
The geometric angle of the tool has a significant influence on the deformation of the workpiece, and the rake angle, back angle, and entering angle of the tool directly affect the size of the processing force. In addition, the cutting force produced by different tool materials is also different in the machining process. In the processing of thin-walled parts, the choice of tool material is more critical.
5. Part materials
Part materials are divided into metallic materials and non-metallic materials, brittle and plastic materials; the cutting parameters and cutting tool parameters used by different materials are different; different parts materials have different choices of processing parameters for thin-walled parts.
Factors affecting the machining accuracy of thin-walled parts
1. Deformation under force
Due to the wall thickness of the workpiece, it is prone to deformation under the action of the clamping force, which affects the dimensional accuracy and shape accuracy of the workpiece;
2. Deformed by heat
Because the workpiece is thin, the heat of cutting will cause thermal deformation of the workpiece, making it difficult to control the size of the workpiece;
3. Vibration and deformation
In the role of cutting force, it is easy to produce vibration and deformation, which affect the dimensional accuracy, shape, position accuracy and surface roughness of the workpiece.
As a modern manufacturer of precision machinery parts, Foshan Tongtaisheng Precision Electromechanical Technology Co., Ltd. takes CNC processing as its core technology, has physical factories, testing equipment, and integrates rapid prototyping, molds, post-processing and other supporting manufacturing resources to provide customers Provide rapid proofing, small and medium batch production and trial assembly, truly worry-saving one-stop service; the company has Taiwan imported computer gongs, milling machines, lathes, grinders and other precision machining equipment, as well as non-standard production experience Technical team, rich production experience. Consultation telephone: 13826973330, website: www.fstpe.com.
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