Characteristics and Processing Of Titanium Wire

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Titanium wire, due to its low density, high specific strength, high temperature, oxidation resistance, wide range of applications. Poor performance of the machining of titanium wire, affecting the widespread use of the material.

Xiamen, Fujian, China., February 3, 2012 - (PressReleasePoint) -

Titanium wire, due to its low density, high specific strength, high temperature, oxidation resistance, wide range of applications. Poor performance of the machining of titanium wire, affecting the widespread use of the material.

Using high cobalt tool is good, the main role of cobalt can enhance the effect of secondary hardening, improve the hardness of the red hardness and heat treatment, at the same time can have high toughness, wear resistance, good heat dissipation, after information on the domestic commonly used tool and abroad tool data test indicated more suitable for processing titanium wire, in order to improve the strength of titanium.
Titanium alloys can be divided into three types: a titanium alloy, titanium wire add alloying elements commercially pure titanium. b titanium alloy and a + b titanium alloys. ab titanium alloy is composed of a and b two-phase stability of such alloys, high temperature deformation properties of toughness, plastic, capable of quenching and aging disposal, so that the alloy to strengthen. The performance characteristics of titanium alloy in the light but its strength is greater than the ultra-high strength steel, high strength, low density of titanium wire (4.4kg/dm3) weight.

Under the condition of 300 to 500 ° C, with high heat resistance. The thermal stability of the titanium wire is good. Its strength is about 10 times higher than aluminum, the appearance of the formation of the hardened layer of TiC and TiN. Chemical activity. Titanium can have strong chemical reaction with the oxygen, nitrogen, carbon monoxide, water vapor and other substances in the air, the thermal conductivity of titanium alloy TC4 at 200°C l = 16.8W / m ℃, poor thermal conductivity, thermal conductivity The coefficient is 0.036 card / cm • sec • ℃.

Firstly, titanium alloy with low thermal conductivity. Only 1/4 of steel, 1/13 of aluminum 1/25 of copper. Due to the cutting zone cooling slowly, conducive to the heat balance in the cutting process, heat and cooling effect is poor, easily formed in the cutting zone high temperature deformation of parts processed big rebound, resulting in the cutting tool torque, fast edge wear, and reduced durability. Secondly, the low thermal conductivity of titanium alloy, the cutting heat is not distributed plot in a small area of the cutter around the rake face friction increase, is not easy chip removal, cutting heat is not easy dissemination to accelerate tool wear. Finally, the high chemical activity of titanium, high temperature processing and tool data to react to form a melting deposited, diffusion, resulting in sticky knife, burning knife, cutting knife and other phenomena.

The hardness of the tool will need much larger than the hardness of the titanium alloy wire. Sufficient strength and toughness. As the cutting tool titanium wire alloy under a lot of torque and cutting force, tool data selected should meet the following requirements: sufficient hardness. So must have sufficient strength and toughness. Sufficient resistance to abrasion. Titanium toughness, processing the cutting edge sharp tool data must have sufficient wear resistance so that the abilities to reduce hardening. This is an important parameter to select the machining titanium tool. Tool data and titanium affinity ability to be poor. To prevent the high chemical activity of titanium wire, alloy, tool materials and titanium wire, alloy melting deposited, diffusion from the alloy, resulting in sticky knife, burning knife phenomenon.