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Factors to consider when selecting PCD tool material


2019-11-27


Factors to consider when selecting PCD tool material

As with other tool materials, PCD tool material is not suitable for every kind of machining. The following points should be considered when selecting.

1. Cutting depth: PCD tool material is very sharp. When using a large cutting depth, the processing effect is not obvious enough. This depends to a large extent on the material of the workpiece, cutting speed and feed rate. So when the cutting depth is greater than 0.02mm, It is not suitable to use PCD tools for processing. It is best to use PCD tools for rough machining, and then use SCD tools for finishing.

2. Workpiece materials: When processing non-ferrous metals (aluminum, copper, brass) and non-metallic materials (plastic, wood, etc.), it is best to use PCD tool material, and any iron-based materials should not be processed using PCD.

3. Price: The performance of the PCD tool material is superior to other advanced tool materials. Processing with this material can obtain huge economic benefits, but its price is very expensive. For example, the price of a PCD tool material is more than 4 times that of SCD tools. Although PCD tools the price is high, if the PCD tool is used correctly, it can reduce the cost of the machining process and can greatly increase the production efficiency.

4. Handling: Diamond is the hardest material, and it is also extremely brittle and sensitive to thermal shock. The PCD blade is sharp, and any real impact (such as inadequate tool loading or unloading or tool landing) will cause the blade to be chipped, cracked or damaged, so operators should be trained. In order to avoid subtle blade damage, generally, we should place a thin film piece between the diamond cutter and other parts.

In short, although PCD tools are expensive and limited to the processing of certain materials. Due to their high processing efficiency, good surface roughness, and long tool life, they make up for the lack of expensive tools.

In ultra-precision machining, in addition to high-precision machine tools and ultra-stable machining environments, the main factor for ensuring the quality of the machining surface is also a very important aspect. Natural diamond has high hardness, good wear resistance, high strength, good thermal conductivity, low friction coefficient with non-ferrous metals, good anti-adhesion, excellent corrosion resistance, and chemical stability. It can sharpen extremely sharp blades. It is considered to be the most ideal ultra-precision cutting tool material, which has an important position in the field of mechanical processing, especially in the field of ultra-precision processing, and has been widely used.

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  • BEIJING DEMINA PRECISION MACHINERY CO., LTD.

    [JIANGXI GEQI GRINDING TECHNOLOGY CO., LTD.]

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    Room 1-6, Building 2, Hongfu Science Park, BeiQiJia Town, Changping District, Beijing, China
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