So far, the extrusion process of the titanium rod has to use a lubricant.

With the increasing amount of titanium alloy materials on various power systems, the surface protection of titanium alloy parts during processing becomes particularly important.

Titanium alloy has a good specific strength, high heat resistance, excellent corrosion resistance and low density. It has been widely used in aviation, aerospace, ship and chemical industries. Especially in the power system, a large number of titanium alloy materials are used, which has far-reaching significance for reducing the weight of the system and increasing the thrust-to-weight ratio.

What are the protection requirements for titanium alloys during machining? The following titanium alloy machining parts manufacturers introduce a few points:

(1) When cutting titanium alloy parts, machine tools and tools with good rigidity, and special tooling with low vibration and strong rigidity should be used. The special tooling for titanium alloy parts is not allowed to have active metal coatings such as zinc plating and cadmium plating to prevent the organization of titanium alloy parts from being exchanged with the tooling due to electrochemical corrosion and to prevent the cadmium brittleness of the titanium alloy. Choose suitable tooling to minimize the processing stress of titanium alloy parts and avoid deformation.

(2) When processing titanium alloy, use a lower cutting speed, sharp tool, and take a big knife. However, the tool is not allowed to stop during the machining process. At the same time, choose the specified halogen-free coolant to prevent the surface of the titanium alloy from being overheated and sticking to the knife, which may lead to the problem of metal tearing and deterioration of the surface of the part.

The sticking of the knife is mainly caused by the chemical affinity of the titanium alloy and the tool material. The use of a chloride-free coolant can not only prevent overheating, but also have a certain lubricating effect, reduce the phenomenon of tearing, and extend the use of the tool. life.

(3) Titanium alloys are prone to cold work hardening. Therefore, the depth of the cut should exceed the thickness of the cold work-hardened layer produced during the previous cutting. The tool should have both anti-wear ability and high thermal hardness. The machining depth should be ensured by controlling the rigidity of the lathe, the cutting tool and the clamping degree of the parts.

(4) When milling titanium alloy parts, it is recommended to use high-speed steel multi-edge milling cutters embedded with cemented carbide. Disc milling cutters should adopt down-milling technology. When reverse milling, the stability of the milling cutter is reduced by half, so The finish of the machined surface will have severely deteriorated.
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