MITSUBISHI MATERIALS (THAILAND) CO., LTD.

Cutting Insert Selection Mistakes ｜ How to Avoid Downtime and Extend Tool Life

Choosing the wrong cutting insert leads to poor surface finish, tool damage, and higher production costs. This guide outlines common insert selection errors and how the VPX Series from MMC Hardmetal (Thailand) can help avoid them.
■ What Are Cutting Inserts and Why They Matter
Cutting inserts—made from carbide, CBN, or ceramic—are the core components of tools used in turning, milling, drilling, or grooving. A properly selected insert enhances tool life, reduces manufacturing costs, and ensures high surface quality.
■ Common Mistakes in Cutting Insert Selection
1. Wrong Grade:
・ Example: Using the same insert for both carbon steel and stainless steel
2. Incorrect Geometry:
・ Using CNMG for finishing when it’s meant for roughing
3. Unsuitable Hardness:
・ Overly hard inserts crack; soft ones wear fast on tough materials
4. No Chipbreaker:
・ Results in chip jams and tool/machine failure
5. Mismatched Coating:
・ TiN, TiCN, AlTiN must match material hardness, speed, and cutting force
■ How to Avoid These Mistakes
・Match insert grade to workpiece material
・Select geometry (e.g., CNMG, TNMG) based on operation type
・Choose chipbreaker for roughing or finishing tasks
・Review manufacturer TDS/SDS or use selection software
・Ask your tool supplier’s technical team for recommendations
・Fine-tune cutting speed, feed rate, and depth for optimal results
■ Recommended Product: Tangential Insert VPX Series from MMC Hardmetal (Thailand) Co., Ltd.
The VPX Series by DIAEDGE (Mitsubishi Materials) provides high rigidity and stable cutting for precision jobs:
・Tangential design boosts tool body strength and reduces chatter
・Special coatings extend wear life and resist shear forces
・Versatile: Ideal for stainless, carbon steel, cast iron, and alloys
・Improves surface quality and cuts downtime
If you want better tool life, fewer insert changes, and smoother surfaces—VPX is your insert.
■ For more information or to download technical documents, please contact MMC Hardmetal (Thailand) Co., Ltd.
#CuttingInsert #VPXSeries #DIAEDGE #Turning #Milling #TangentialInsert #ToolLife #CuttingTools #Industry4.0 #ManufacturingThailand #MMC

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Cutting Insert Selection Mistakes ｜ How to Avoid Downtime and Extend Tool Life

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