Safety Performance of Cemented Carbide Insert

The product is packaged with a safety warning label. However, no detailed warning signs were affixed to the knives. Before machining cutting tool products and carbide materials, please read "Safety of Tool Products" in this article. Next, let's find out together.

Safety of cemented carbide insert products：

1. Basic characteristics of cemented carbide insert materials About "Safety of Knife Products"

Hard tool materials: the general term for tool materials such as cemented carbide, cermet, ceramics, sintered CBN, sintered diamond, high-speed steel and alloy steel.

  2. The safety of tool products

* Carbide tool material has a larger specific gravity. Therefore, they require special attention as heavy materials when the size or quantity is large.

*Knife products will generate dust and mist during the grinding or heating process. May be harmful when in contact with eyes or skin, or if large quantities of dust and mist are swallowed. When grinding, local exhaust ventilation and respirators, dust masks, glasses, gloves, etc. are recommended. If dirt comes in contact with hands, wash the affected area thoroughly with soap and water. Do not eat in exposed areas and wash your hands thoroughly before eating. Remove dust from clothing with detergent or the washing machine, but do not shake it off.

*Cobalt and nickel contained in carbide or other cutting tool materials have been reported to be carcinogenic to humans. Cobalt and nickel dust and fumes have also been reported to affect the skin, respiratory organs and heart through repeated or prolonged exposure.

  3. Processing tool products

*Surface condition effects can affect the toughness of cutting tools. Therefore, diamond grinding wheels are used for finishing.

* Carbide knife material is very hard and brittle at the same time. As such, they can be broken by shocks and overtightening.

*Carbide tool materials and ferrous metal materials have different thermal expansion rates. Cracks may occur in products that shrink or expand when the applied temperature is higher or lower than the proper temperature for the tool.

* Pay special attention to the storage of carbide cutting tool materials. When cemented carbide tool material corrodes due to coolant and other liquids, its hardness decreases.

* When brazing carbide tool materials, if the melting point temperature of the brazing material is too high or too low, loosening and fracture may occur.

* After resharpening the knives, make sure there are no cracks.

*When electric discharge machining cemented carbide tool materials, due to the residual electrons after electric discharge machining, it will cause cracks on the surface, resulting in a decrease in toughness. Eliminate these cracks by grinding etc.

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