Machining characteristics of stainless steel and selection of milling cutters
Stainless steel CNC machining is a common metal processing method, but due to the high hardness and corrosion resistance of stainless steel materials, higher requirements are placed on processing equipment and tools. This article will introduce the characteristics of stainless steel CNC machining and provide you with suggestions for selecting the appropriate milling cutter.
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1、 Characteristics of CNC machining of stainless steel
High hardness: Stainless steel usually has a high hardness, thus requiring high wear resistance of cutting tools.
High toughness: Stainless steel materials have good toughness, so they are prone to chip problems during CNC machining. It is necessary to choose appropriate cutting parameters and reasonable tool design.
Strong corrosiveness: Stainless steel has strong corrosiveness and is prone to corrosion, wear, and other issues for cutting tools. Therefore, choosing corrosion-resistant cutting tools is very important.
2、 Selection of milling cutters
Tool material: Stainless steel CNC machining is suitable for selecting tool materials with high hardness and wear resistance, such as coated hard alloy tools, PVD coated tools, etc. These tools can effectively extend the service life of the tools and maintain good cutting performance.
Tool geometry: For stainless steel CNC machining, it is generally recommended to choose tools with larger rake and rake angles, which can effectively reduce cutting force and friction, and reduce temperature during the machining process.
Tool coating: The coating plays a crucial role in the service life and cutting performance of the tool. Common coatings include TiN coating, TiCN coating, AlTiN coating, etc. These coatings can reduce the coefficient of friction and prevent problems such as tool sticking and thermal cracking.
Cutting parameters: In the CNC machining process of stainless steel, selecting appropriate cutting parameters is also crucial. Reasonable feed rate, cutting depth, and cutting speed can ensure the lifespan and processing quality of the cutting tool.
Stainless steel CNC machining is a task that requires technology and experience, and selecting the appropriate tool is crucial for improving machining efficiency and quality. It is recommended to choose tool materials with high hardness and wear resistance, appropriate tool geometry and coating in stainless steel CNC machining, and adjust them according to specific cutting parameters to achieve the best machining effect.
