In Metal Stamping processing, the requirements for drilling accuracy are very high. Controlling the drilling accuracy can help improve the quality of the die and punch out better quality metal stamping parts. To control the accuracy, it is necessary to ensure the accuracy of scribing, punching and drilling.

1. Control of bottom hole accuracy

First, control the line drawing accuracy. To check the sharpness of high-scale stitches, draw lines at one time, with thin and deep lines.

Then, control the accuracy of the die processing punching. In the process of proofing and punching, move the sample along the cross center of the drawing groove. When it dries to the top of the sample, there is a feeling of depression, indicating that the sample is in the cross center. At this moment, the sample must be straight. The operator should tap the sample before punching. After punching, check whether the orientation is accurate. If it is not accurate enough, you need to readjust the parameters and punching things. Finally, control the accuracy of drilling. First use the drill bit to drill a shallow pit in the marking orientation of the hardware stamping die to measure whether the drilling orientation and quality are qualified. If it is not qualified, repeatedly adjust it until it meets the requirements. Pay attention to the drill bit with a longer horizontal edge, which can easily lead to a high drilling center. This situation advocates selecting a drill bit with almost no horizontal edge when satisfied with the drilling requirements.

2. Control of reaming accuracy

The above-mentioned control of the low hole accuracy of the mold is to lay the foundation for reaming, and it is particularly important to choose reasonable measures to control the reaming accuracy of the mold.

First, the reaming drill bit should be ground down to enhance its automatic centering effect, and the reaming accuracy and cutting force should be continuously reduced. Secondly, the drilling equipment should be adjusted to allow the drill bit to gradually approach the bottom hole port that has been drilled, and fine-tuned to completely eliminate the bottom hole. Finally, the drill press switch is turned on to perform die drilling.

This article is from EMAR Mold Co., Ltd. For more EMAR related information, please click: www.sjt-ic.com,