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What are the characteristics of tungsten steel coated angle knives
Tungsten coated angle cutter is a precision tool used for angle cutting, chamfering, and groove processing in metal processing. It combines the high strength of tungsten steel substrate and the good performance of coating technology. Its characteristics are mainly reflected in the following aspects:Sources：www.hafc.net.cn | PublishDate：2025.07.22
1、 Advantages of substrate performance
High hardness and wear resistance: Tungsten steel (hard alloy) substrate itself has a higher hardness (usually HRC 85-90 or above), surpassing high-speed steel, and can withstand high-speed cutting and high load processing. It has good cutting ability for difficult to machine materials such as stainless steel, cast iron, and high-strength alloys, and the tool life is significantly longer than traditional tools.
High rigidity: Tungsten steel has good compressive strength and rigidity, is not easily deformed during cutting, and can ensure the accuracy of angle processing (such as angle tolerance controlled within ± 0.1 °), especially suitable for chamfering and bevel processing of precision parts.
High temperature resistance: Tungsten steel has much higher heat resistance than high-speed steel, and can maintain hardness and structural stability even at high temperatures (up to 500-800 ℃) generated by high-speed cutting, reducing machining errors caused by thermal deformation.
2、 The effects brought by coating technology
Coating is a thin film formed on the surface of tungsten steel substrate through techniques such as physical vapor deposition (PVD) or chemical vapor deposition (CVD), such as TiN, TiAlN, AlCrN, etc., to further enhance tool performance:
Reduce friction coefficient: The coating surface is smooth, which can reduce the friction between the tool and the workpiece, lower cutting force and cutting temperature, and reduce chip adhesion (especially suitable for processing viscous materials such as aluminum alloy and copper).
Improving wear resistance and oxidation resistance: The coating itself has high hardness (such as TiAlN coating with a hardness of HV 3000 or above), and high oxidation resistance temperature (some coatings can withstand 1000 ℃ or above), which can effectively resist chip erosion, wear and oxidation corrosion, and extend tool life.
Adapt to different processing materials: Different coatings have different targeting, for example:
TiN coating is suitable for processing carbon steel and alloy steel, with strong versatility;
TiAlN coating is suitable for high-speed cutting and processing of high-temperature alloys;
AlCrN coating performs well in processing stainless steel and titanium alloys.
3、 Targeted design for angle processing
Correct angle control: The cutting edge angle of the tool (such as 30 °, 45 °, 60 °, 90 °, etc.) is precisely ground with minimal angle error, and can directly process inclined surfaces, chamfers, or bevels that meet the requirements of the drawing without the need for subsequent trimming.
Diverse cutting edge forms: According to processing requirements, the cutting edge can be designed as a single edge, double-edged or multi edge, and some cutting tools have spiral or straight edges to adapt to different cutting methods (such as forward milling, reverse milling) and processing efficiency requirements.
Suitable for various processing scenarios: The tool holder forms are diverse (such as straight handle, Mohs taper handle, ERC tool holder, etc.), and can be adapted to various equipment such as milling machines, lathes, machining centers, etc., with high flexibility.
4、 Scope of application and processing advantages
Widely applicable materials: can process carbon steel, alloy steel, stainless steel, cast iron, non-ferrous metals (aluminum, copper) and some composite materials, especially in the processing of hard materials (HRC 30 or above), with obvious advantages.
High efficiency and precision: Stable machining quality can still be maintained under high-speed cutting, with low surface roughness (up to Ra 1.6 μ m or less), reducing subsequent polishing processes and improving production efficiency.
Reduce tool replacement frequency: Due to its strong wear resistance, it can reduce the number of tool changes, downtime, and costs in mass production.