• 2023-06-06
• 274
• 5 Comments

Mold part accessories processing details and precautions

Mold part accessories refer to the parts or components of the device mold; It can also refer to a mold part or component that is reinstalled after being damaged. Precision die is generally composed of many parts, which can be divided into two categories: process parts and structural parts. Process parts directly affect the quality of molding production, the decisive quality of process parts in the current precision mold part accessories are finished by finishing.

Precision machining process is related to the life of precision mold and molding products. In addition to the slow wire cutting, electric discharge molding and other technological techniques, the other method is to grind processing on the basis of heat treatment after semi-finishing. Then in the grinding stage of precision die parts processing, many technical parameters such as deformation, internal stress, shape service and scale accuracy of parts need to be controlled well.

In the detailed production practice, the operation is more difficult, but in the 15 years of precision processing experience can be summarized and analyzed out of the method can be learned: from the mold finishing process control precision mold parts processing, we can for different mold parts, different materials, different shapes and different technical requirements for adaptive processing, supply selection program.

Through the control of the processing process, to achieve better processing effect and economy is the key that most precision mold parts processing enterprises pay attention to. The process of precision die part accessories processing is generally: rough machining - semi-finishing machining - (quenching, tempering) - precision grinding - electric machining - fitter dressing - assembly processing.

Notes for mold parts processing

1. Core insert needle introduces 2D and 3D surface rough processing, non-installation and non-working surface processing (including safety platform surface, buffer mounting surface, platen plane, side datum surface). Before semi-finishing, alignment of side datum surface ensures accuracy.

2. Before finishing, rectify the datum surface of the process reference hole, check the allowance of inserts, and check and review the machining accuracy. Finishing surface 2D, 3D, side punching surface and hole position, Dongguan mold processing finishing process reference hole and height reference, finishing guide surface and guide hole.

3, processing key and difficult points, the process should be particularly emphasized, the need for combined processing, the process is clearly expressed. Process preparation is concise, detailed expression, processing content as far as possible numerical expression. When inserts need to be processed separately, pay attention to the processing accuracy of the process requirements.

4, mold part accessories processing matters needing attention: after combined processing, insert parts need to be processed separately, combined processing process installation of separate processing of the benchmark requirements. Die processing spring is easy to damage, so choose the die spring with long fatigue life.

In recent years, the mold industry in our country has grown rapidly at an average speed of more than 15%, which is much higher than the average value added of national GDP. Among them, precision casting mold accounts for about 5% of the total output value of all kinds of mold, and the annual growth rate is as high as 25%. At present, our automobile and motorcycle industry has entered a period of rapid growth, and the output has increased significantly for many years. Especially the car which is closely related to the precision casting industry grows rapidly, which increases the demand for complex and precision casting mold.