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Reasons for surface scratches of CNC machined parts
Date: 2022-09-26
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Reasons for surface scratches of CNC machined parts

In the Xiehe custom machining parts, the hardness of the material, the feed of the tool, the machine, and the cutting fluid are all factors that affect the surface finish of the surface of many parts. Today, I will take you to talk about the common causes of surface scratches on custom machined parts. , to assist our customers to improve the surface quality of their parts.

The general causes of surface scratches of Xiehe customized parts are summarized as follows:

Scratches of CNC machines, tools, stamping dies and improper operation of operators.

1. For workpieces with high surface requirements such as no surface treatment, electroplating, aluminum materials, etc., if the incoming material is not pasted with a protective film, a medium-viscosity PE protective film must be pasted before processing, and it must be pasted smoothly.

2. When loading, a rubber pad must be placed between the two layers of boards for protection, and it is strictly forbidden to drag the board directly.

3. No matter the size of the material, it must be handled with care, without dragging or pulling.

4. EPE or cardboard should be used for layered isolation when placing, and it is strictly forbidden for the workpieces to contact each other.

5. When CNC blanking, care should be taken to prevent the machine, upper and lower molds, and unloading plates from scratching the plate.

6. In order to prevent the material from falling freely when the shearing machine cuts the material, a rubber pad should be placed at the back of the machine tool for protection.

7. The gap between the upper and lower dies and the unloading system must be adjusted well during the punching process, so that the surface of the workpiece is free from scratches and mold indentations. During the processing, the lower dies should be cleaned regularly and timely to prevent iron filings from scratching the workpiece. surface.

8. For all film-coated materials, the surface condition must be sampled during the process to prevent the surface of incoming materials from being bad, resulting in batch scrapping.

9. The laser can be processed by the sheet without protective film when cutting, but it is strictly forbidden to move the sheet by dragging when loading, and it should be loaded by multiple people (at least 2 people). . After blanking, the surface residues, dust and EPE of the workpiece should be cleaned and placed in layers.

Shenzhen Xiehe Company is mainly engaged in the production and manufacture of non-standard precision hardware parts. It has been deeply involved in the industry for many years and has rich experience. If you have requirements for CNC lathe machining, five-axis machining services including aluminum, copper, stainless steel, iron, titanium alloys, plastics and other products, you can contact Xiehe, we will provide you with an integrated solution of low cost and high quality .

Phone

+86 13682610409
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sales1@xiehe-model.com
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sales@xiehe-model.com
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