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      1. Home > Solution > Metalworking

        Material characteristics

        In high-end technology fields such as aerospace and medical equipment, hole machining technology plays a crucial role. Titanium alloy is a metal material with high strength, low density, and corrosion resistance, which is widely used in high-end technology fields such as aerospace and medical equipment. Therefore, hole processing technology needs to be used on titanium alloy to establish an indestructible bond between advanced materials such as lightweight alloys and composite materials, thus supporting the skeleton of aircraft, the precision structure of medical equipment, and even the core functions of more high-tech products.
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        High cutting temperature

        Titanium alloys are extremely difficult to process due to their high hardness, low thermal conductivity, strong chemical activity, and work hardening properties.

        The main processing difficulties for drilling titanium alloys include:

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        High cutting temperature

        The poor thermal conductivity of titanium alloy makes it difficult to dissipate the heat generated during drilling, which can easily cause tool overheating and rapid wear;

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        Difficulty in chip removal

        During the drilling process of titanium alloy, it is difficult to achieve chip breaking effect. The chips are easily wrapped around the tool and difficult to discharge, which can easily lead to tool jamming and breakage, and have a serious impact on machining accuracy and quality;

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        Work Hardening

        Titanium alloys are prone to work hardening during the cutting process, which increases the hardness of the machined surface and exacerbates tool wear;

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        High chemical activity

        Titanium alloys have high chemical activity and are prone to react with oxygen in the air, forming an oxide layer that may increase friction and wear during the cutting process;

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        High cutting force

        Due to the high strength and low thermal conductivity of titanium alloys, greater cutting force is required during drilling, which places higher demands on the strength and rigidity of cutting tools;

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        Stick knife phenomenon

        During the cutting process, it is easy for chips to bond with the tool, forming chip deposits that affect the quality of the machined surface and can easily cause adhesive wear of the tool;

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        Drill Precision

        The elastic modulus of titanium alloy is low, and the rebound during processing is more severe, especially when the thickness of the processed object is thin, the rebound problem will be more serious, affecting the drilling accuracy.

        Solution

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        • 011)Optimize tool materials, select imported materials, improve tool thermal conductivity, wear resistance, and adhesion resistance;
        • 02Optimize the coating material of cutting tools to enhance their wear resistance and adhesion resistance;
        • 031)Optimize the geometric parameters of the cutting tool and improve the sharpness of the cutting edge;
        • 041)Optimize the tool groove structure, improve the tool's chip removal and breaking ability, and increase the heat dissipation space.
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