Turning CNC Carbide Inserts for Stainless Steel Semi Finishing with Precision Polishing Edge

CNC Carbide Turning Inserts for Stainless Steel Semi Finishing with Precision Polishing Edge

• The Core Competitive Products.
• Have Excellent Performance and Superior Cost Performance.

Application:

• ISO M materials, the first choice for semi-finishing of all kinds of stainless steel.

Technical Information:

• Stainless steel is an alloy material with a Cr content of not less than 12%. Other alloying elements may include Ni and Mo.
• When the stainless steel is cutting, the cutting edge generates a lot of heat, which is prone to groove wear and built-up edge.
• The turning of stainless steel varies depending on the alloying elements of the material, heat treatment and processing (forging, casting, etc.). Generally, machinability decreases as the alloy content increases, but materials that are easy to cut or have improved machinability are present in all types of stainless steel.
• Stainless steel turning, the choice of chipbreader, and the selection of cutting parameters to follow the actual situation are important considerations.
• For turning, stainless steel can generally be divided into three categories:
  • Ferritic& martensitic stainless steel:
    • Material classification: P5.x
    • Ferritic and annealed martensitic stainless steels have similar machinability to low-alloy steels, so general machining recommendations for steel turning can be used.
    • Sometimes hardened martensitic stainless steel is cutting, which places high demands on the plastic deformation of the insert.
  • Austenitic stainless steel:
    • Material classification: M1.x and M2.x
    • Austenitic stainless steel is the most common type of stainless steel.
    • This type of stainless steel also includes so-called super austenitic stainless steel, that is, stainless steel with a Ni content of more than 20%.
    • Austenitic stainless steels are recommended to always use coolant to reduce crater wear and plastic deformation, and try to use a large insert radius.
    • Work hardening often causes the groove to wear at the depth of the cut, causing burrs on the part. A round insert or a small lead angle is recommended.
    • Bonding trends, built-up edge is also a common type of wear, both of which have an adverse effect on surface quality and tool life. A sharp cutting edge and a positive rake insert are recommended.
  • Duplex stainless steel (Austenitic & Ferritic)
    • Material classification: M3.4
    • Duplex stainless steel has a two-phase structure containing ferrite and austenite.
    • For duplex stainless steels with high alloy content, use names such as advanced or super duplex stainless steel.
    • In terms of heat generation, cutting force and cutting control, the higher the mechanical strength, the harder the material is to be machined. Common types of wear are flank and crater wear, plastic deformation, cutting impact and grooves.
    • It is recommended to always use coolant to reduce heat.
    • Use small lead angles to avoid groove wear and burr formation.
    • Use a groove with high edge strength to withstand high cutting forces.

Feature Advantage:

• Considering the performance of different stainless steel materials, through excellent chipbreaker design, ideal coating and professional surface treatment technology, through a large number of customer application verification, the performance and life of stainless steel series turning inserts reach the level of mainstream brands in Japan, South Korea and European.
• The price has obvious advantages over Japanese, Korean and European mainstream brands.

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• Chipbreaker MM:
  • Suitable for semi-finishing of stainless steel with a depth of cut of 1-3 mm.
  • Chipbreaker designed for stainless steel's highly viscous, highly plastic, difficult-to-machine materials.
  • Fast cutting and good control of iron filings for excellent surface quality.
  • Precision polishing edge improves the toughness of the cutting edge, reduces the cutting force, reduces the sticking phenomenon, and significantly improves the stability of the insert.
  • Strengthened the impact resistance of the cutting edge on the basis of sharp edge, suitable for semi-finishing and intermittent processing of various stainless steels.

• Grades:
  • High coating hardness and excellent high temperature resistance, with high processing efficiency and reliability under high temperature cutting conditions.
  • Special coating treatment technology, the coating and matrix are more firmly bonded.
  • Coating stress relief treatment, effectively improve tool life, improve stability, and make tool life predictable.

• Types:
  • ISO standard turning inserts are available in a variety of conventional types
  • Different tool nose arcs (0.2, 0.4, 0.8) for each type

Negative Insert

Positive Insert

• Recommended cutting parameters:
  • The following cutting parameters are the recommended range values. Appropriate adjustments and selections should be considered after considering the following factors:
    • Specific physical properties of stainless steel
    • The actual condition of the part blank
    • Power and rigidity of the machine tool
    • Clamping rigidity of tools and workpieces
    • Balance between tool life and processing efficiency