Titanium alloys are difficult to drill, and burn-out and broken drills often occur during processing. This is mainly due to poor grinding of the drill bit, inadequate chip removal, poor cooling, and poor rigidity of the process system. Therefore, the following points must be noted in the drilling of titanium alloys: Tool material: high-speed steel […]
The tool wear is not serious during reaming of titanium alloy, both hard alloy and high-speed steel reamer can be used. Factory commonly used are W18Cr4V, M42, YW1, YG8, YG10HT and so on. When using carbide reamers, the rigidity of the drilling-like process system should be adopted to prevent the reamer from collapsing. The main […]
Compared with other pipes, titanium plates of mechanical equipment have higher resistance to internal force and pressure, better corrosion resistance and wear resistance. It has the advantages of convenient construction, good sealing performance of the interface, and large safety factor of operation. In recent years, the momentum of development in the market of titanium casting […]
The heating characteristics and hot rolling characteristics of die forging blades and bars for manufacturing fasteners. The batch materials used in the former Soviet Union for the manufacture of aerospace blades are titanium alloy bars such as BT3-1, BT8, BT9 and OT4 with a diameter of 10-60 mm. The material for aviation fasteners is generally […]
The two-roll oblique rolling piercer consists of two double barrel-shaped rolls, so it is called barrel piercing. The axis of the roll is at a certain angle of inclination with the axis of the rolling mill, so it is also called cross-rolling. The two rollers rotate in the same direction during operation. The billet enters […]
In the cold rolling of titanium and titanium alloys, the common lubricants for sheet rolling are turbine oil, transformer oil, rolling oil, cottonseed oil, castor oil, and palm oil. The common lubricants for strip rolling are turbine oil, Transformer oil, rolling oil; commonly used lubricants for foil rolling are No. 5 rolling oil and white […]
When the large-scale rolling deformation of a + P or P-type titanium alloy billet in one direction is too large (more than 98%), “striped grooves” are generated on the surface of the plate along the rolling direction. The experiment proves that the TC3 sheet is deformed by 50% and then reversed to roll, which can […]
The reinforcement synthesized in situ is evenly distributed on the substrate, and the grains of the titanium alloy on the substrate are also relatively small. The morphology of the reinforcement is mainly equiaxed or near-equiaxed TiC titanium alloy particles and short fibrous TiB whiskers. The interface between the reinforcement and the matrix is good, and […]
The smelting current is an important parameter of vacuum consumable smelting. It is related to the titanium material being smelted, the diameter of the ingot, the diameter ratio of the crucible to the electrode, the pressure in the furnace, the polarity, the furnace structure and the type of power supply. The size of the smelting […]
From the beginning of power feeding and smelting to the complete melting of the charge (except for the solid arch bridge above the melting pool), it is called the charge melting stage. At the beginning of smelting, the specific resistance of the newly added charge is large, the electrode is in direct contact with the […]