In the field of machining, dimensional error has a direct impact on the working performance and service life of products, and the error is closely related to the processing quality of parts and the assembly accuracy of products. Precision machinery parts, automation equipment and other industries spare parts processing technology is generally finished by finishing and rough processing, the selection of processing technology is unreasonable or processing technology problems, will cause dimensional error of parts.
Dimensional error refers to the requirement that the actual geometric parameters (drawing process size, geometric shape and mutual position) of parts after processing are consistent with the geometric parameters of processing technology. The deviation between them is machining error, and the size of machining error reflects the machining precision. The accuracy of parts processing is expressed by the size of processing error, that is, by the relevant national tolerance standards. The actual parameters obtained by any processing method will not be absolutely accurate. In machining practice, under the premise of ensuring the working performance of the machine tool, the machining error does not exceed the deviation required by the customer’s drawing process is qualified.
In order to ensure and improve the machining accuracy of mechanical parts, it is the main responsibility to master the basic law of the change of machining dimension error. As the saying goes, to produce good equipment, we must first ensure the processing quality of mechanical parts.
ken. tang@chengcg.com
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