How to improve the machining deformation of mechanical parts
Classification:
Release Time：2019-10-28
In the actual parts processing, there are many factors that cause the deformation of the parts. In order to fundamentally solve these deformation problems, operators need to seriously explore these causes in practical work and formulate improvement measures. 1, the use of special fixtures to reduce clamping deformation in the process of mechanical parts processing, the requirements for refinement is very strict. For different parts, the selection of different special tooling, can make the parts in the process of processing is not easy to appear displacement. In addition, before processing, the staff also need to make corresponding preparations, comprehensively check the fixed parts, check the drawings, and check whether the position of the mechanical parts is correct to reduce clamping
In the actual parts processing, there are many factors that cause the deformation of the parts. In order to fundamentally solve these deformation problems, operators need to seriously explore these causes in practical work and formulate improvement measures.
1. Use special fixture to reduce clamping deformation
In the process of mechanical parts processing, the requirements for refinement are very strict. For different parts, the selection of different special tooling, can make the parts in the process of processing is not easy to appear displacement. In addition, before processing, the staff also need to make corresponding preparations, comprehensively check the fixed parts, check the drawings, and check whether the position of the mechanical parts is correct to reduce the clamping deformation.
2. Finishing processing
Parts are prone to deformation after heat treatment, which requires measures to ensure the safety of parts. After the mechanical parts are processed and deformed naturally, professional tools should be used for trimming. When finishing the processed parts, it needs to be carried out in accordance with industry standards to ensure the quality of the parts and extend their service life. This method is most effective after the deformation of the part. If the part is deformed after heat treatment, it can be tempered after quenching. Because there will be residual austenite in the part after quenching, these substances will be transformed into martensite at room temperature, and then the object will expand. In the processing of parts to take every detail seriously, so that you can reduce the probability of deformation of parts, grasp the design concept on the drawing, according to the production requirements, so that the production of products in line with the standard, improve economic efficiency and work efficiency, so as to ensure the quality of mechanical parts processing.
3, improve the quality of blank
In the specific operation process of various equipment, improving the quality of the blank is the guarantee to prevent the deformation of the parts, so that the processed parts meet the specific standard requirements of the parts, and provide a guarantee for the use of the later parts. Therefore, the operator needs to check the quality of different blanks, and replace the blanks with problems in time to avoid unnecessary problems. At the same time, the operator needs to select a reliable blank according to the specific requirements of the equipment to ensure that the quality and safety of the processed parts meet the standard requirements, thereby extending the service life of the parts.
4. Increase the rigidity of parts to prevent excessive deformation
In the processing of mechanical parts, the safety performance of parts is affected by many objective factors. Especially after the parts are heat treated, the parts will be deformed due to the stress shrinkage phenomenon. Therefore, in order to prevent the occurrence of deformation, technicians need to select the appropriate heat-limiting treatment method, and then change the stiffness of the parts. This requires the use of appropriate heat-limiting treatment measures in conjunction with the performance of the parts to ensure safety and reliability. Even after heat treatment, no significant deformation occurs.
5. Measures to reduce clamping force
When machining parts with poor rigidity, some measures need to be taken to increase the rigidity of the parts, such as increasing auxiliary support. Also pay attention to the contact area between the tightening point and the part, and choose different clamping methods according to the different parts. For parts with very large length and diameter, it is necessary to clamp both ends together."One end clamping, one end hanging "way. In addition, when machining cast iron parts, the design of the fixture needs to increase the rigidity of the cantilever part. A new type of hydraulic clamping tool can also be used to effectively prevent quality problems caused by clamping deformation of parts during processing.
6. Reduce the cutting force
In the cutting process should be closely combined with the processing requirements to pay attention to the cutting angle, in order to reduce the cutting force. The rake angle and main deflection angle of the tool can be increased as much as possible to make the blade sharp, and a reasonable tool is also crucial to the size of the turning force in turning.
Related News
2026/02/28
Contact Information
+86 27-8970 8339
Address: No.5, Zhengjie, Shuangliu Street, Xinzhou District, Wuhan City, Hubei Province