Titanium Plate Processing Workpiece

Product name: titanium plate processing workpiece

material: TC4

Product color: metal color

Executive standard: National standard/American standard

Product surface: machine surface 

Product origin: Baoji, Shaanxi

Product specifications: to figure customization

Application: This product is widely used in chemical and petroleum equipment, medical equipment, automobile, aerospace equipment, ships, power equipment and so on.titanium plate processing workpiece

Titanium and titanium alloy because of its special physical properties, in the processing process is not as easy as iron, copper, then, titanium and titanium alloy processing properties are mainly reflected in what aspects?

1. Machining performance

Titanium alloy has high strength and high hardness, so it requires large processing equipment power, mold and tool should have high strength and hardness. When cutting, the chip and the front tool surface contact area is small, the tool tip stress is large. Compared with 45 steel, although the cutting force of titanium alloy is only 2/3 -- 3/4, but the chip and the front tool surface contact area is smaller (only 1/2 -- 2/3 of 45 steel), so the tool cutting edge to bear the stress is larger, the tip or cutting edge easy to wear; Titanium alloy has high friction coefficient and low thermal conductivity (only 1/4 and 1/16 of iron and aluminum, respectively). The cutting heat accumulates in a small area near the cutting edge and is not easy to distribute. These factors make the cutting temperature of titanium alloy very high, resulting in the acceleration of tool wear and affect the machining quality. Because the elastic modulus of titanium alloy is low, the workpiece spring back during cutting is large, which is easy to cause the aggravation of tool surface wear and workpiece deformation. Titanium alloy at high temperature chemical activity is very high, easy to react with hydrogen, oxygen and other gas impurities in the air, hardening layer, and further aggravate the tool wear; In titanium alloy cutting, the workpiece material is easy to bond with the tool surface, and the cutting temperature is very high, so the tool is easy to produce diffusion wear and bond wear.

2. Grinding performance

The chemical properties of titanium alloy are active, easy to affinity and adhere to abrasive at high temperature, blocking the grinding wheel, leading to the grinding wheel wear, grinding performance is reduced, grinding accuracy is not easy to ensure. Grinding wheel wear also increases the contact area between grinding wheel and workpiece, resulting in the deterioration of heat dissipation conditions, the temperature of grinding zone rises sharply, and the formation of large thermal stress on the grinding surface layer, resulting in local burns of workpiece and grinding cracks. The high strength and toughness of titanium alloy make the grinding chips not easy to separate, the grinding force increases, and the grinding power consumption increases correspondingly. Titanium alloy has low thermal conductivity, low specific heat and slow heat conduction during grinding, resulting in heat accumulation in the grinding arc zone, resulting in a sharp rise in grinding zone temperature.

3. Extrusion processing performance

When the titanium and titanium alloy are extruded, the extrusion temperature should be high and the extrusion speed should be fast to prevent the temperature drop too fast. Meanwhile, the contact time between the high temperature billet and the die should be shortened as far as possible. Therefore, new heat-resistant die materials should be selected for extrusion die, and the conveying speed of billet from heating furnace to extrusion cylinder should be fast. Due to the susceptibility of metals to gas contamination during heating and extrusion, appropriate protective measures should also be taken. Appropriate lubricants should be selected during extrusion to prevent bonding of molds, such as sheath extrusion and glass lubrication extrusion. Due to the large deformation thermal effect of titanium and titanium alloy, poor thermal conductivity, special attention should be paid to prevent overheating during extrusion deformation. The extrusion process of titanium alloy is more complicated than that of aluminum alloy, copper alloy or even steel, which is determined by the special physical and chemical properties of titanium alloy. In the conventional hot back extrusion process of titanium alloy, the mold temperature is low, the surface temperature of the billet in contact with the mold drops rapidly, and the temperature of the billet increases due to the deformation heat. Due to the low thermal conductivity of titanium alloy, after the surface temperature drops, the heat of the inner billet cannot be transferred to the surface to replenish in time, and the surface hardened layer will appear, which makes the deformation difficult to continue. At the same time, the surface layer and the inner layer will produce a large temperature gradient, even if it can be formed, it is easy to cause deformation and uneven organization.

4. Forging and pressing properties Titanium alloy is very sensitive to forging process parameters, and the change of forging temperature, deformation, deformation and cooling rate will cause the change of titanium alloy microstructure and properties. In order to better control the microstructure and properties of forgings, advanced forging techniques such as hot die forging and isothermal forging have been widely used in forging titanium alloys in recent years. The deformation resistance of titanium alloy increases rapidly with the increase of deformation speed, and the forging temperature has a greater effect on the deformation resistance of titanium alloy. Therefore, conventional forging must be completed with the least cooling in the forging die. The content of gap elements (such as O, N and C) also has significant influence on the forging property of titanium alloy.

Hot Tags: titanium plate processing workpiece, China, suppliers, manufacturers, factory, customized, wholesale, low price, for sale, in stock, made in China, Titanium Alloy Mold, GR5 Titanium According To The Sample, GR5 Titanium Machining Parts, Manufacture According To Drawings, Titanium Alloy Roller