Four Tips for Formulating the Precision Machining Parts Processing Technology Standard - Ningbo Fanhua Precision Casting Co., Ltd.

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Four Tips for Formulating the Precision Machining Parts Processing Technology Standard

Whether precision machining parts processing technology was developed reasonable procedures, directly affect the quality of precision machining parts, labor productivity and economic benefits.

A precision machining part can be manufactured in several different processing methods, but in certain conditions, only one method is more reasonable. Therefore, in the formulation of technical rules, it must proceed from reality, based on equipment condition, production type of situation, as far as possible the use of advanced processing methods, develop a reasonable process order.

Four points should be noted when formulating the precision machining parts processing technology order.

1. In the process of precision machining parts, make an understanding of the structural characteristics of components, precision, material, heat treatment and other technical requirements, and studying the product assembly drawings, assembly drawings, and acceptance criteria for components.

2. The line items of carburizing process are: Forging → cutting → semi-finishing roughing normalizing the precision machining parts→ commentate to carbon processing (without raising the hardness of the part) → quenching → threading, drilling or milling low-temperature aging tank → semi coarse grinding → low → grinding time.

3. Crude benchmark choice: Select the non-finished surface as the crude benchmark. All surfaces of precision machining parts are to be processed, according to the surface to find the minimum allowance is. And choose smooth surface, get out of the gate. Selected for the rough surface of a solid and reliable basis in precision machining parts, at the same time, crude benchmark can not be reused.

4. Fine reference selection: To comply with the principle of base overlap, the design basisprecision machining parts election or assembling the benchmarks as a positioning reference. Meet the benchmark unifying principle. The same as used in most processes a positioning reference. Location benchmarks and measuring as much as possible benchmarks coincide. Select high accuracy, fine surface installed base is stable and reliable

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