Analysis on the preparation of the wool used in the titanium plate and the degreasing method before forming
Titanium blank blanking: The blank preparation methods used in various sheet metal parts have many similarities. Since the thickness of the titanium plate used is generally below 2 mm, and there are few accessories with a thickness of 1.5 mm or more, the blanking of the titanium plate can be carried out at room temperature using existing equipment. When cutting materials, care should be taken to make the edges of the wool as smooth as possible, especially to avoid defects such as cracks, gnaws and cut marks on the edges. The more attention should be paid when cutting thick plates. The wool should be deburred and sharp edges removed before forming. As the titanium plate is very sensitive to crack propagation, this work is very important to eliminate stress concentration, so as to prevent the wool from cracking and scratching the mold during forming. It can be deburred or polished by filing, abrasive belt grinding or sandpaper. It should be noted that no matter which method is used for blanking, only non-polluting ink and pens can be used when marking the line. Steel stamping is not allowed on the wool, and only offset printing or specially equipped labels can be used.
Degreasing and cleaning before the titanium plate is formed: Before thermoforming, the grease or other dirt on the surface should be cleaned to avoid contamination of the titanium during heating. In addition, the oxide on the surface of the wool will
To reduce the plasticity of the material, it should be cleaned before forming. Therefore, in order to reduce the effects of the atmosphere, vacuum quenching furnaces and vacuum annealing furnaces are generally used for heating. The inert gas in the vacuum furnace can protect titanium and titanium alloy materials from pollution during the heating process.
