Titanium alloy rod, TC4 titanium alloy grinding what matters needing attention?

Due to the tendency of titanium alloy material to fill the grinding wheel, it brings difficulties to the grinding of titanium alloy rod and TC4 titanium alloy. During grinding, the higher temperature rise on the interface between the metal and the grinding wheel causes higher residual stress on the grinding surface. Meanwhile, the surface finish is also not ideal.

These difficulties can be basically solved by:

(1) Choose appropriate grinding wheels, such as silicon carbide grinding wheel, with medium sand size (60~80), medium hardness (J~M) and surface speed of 700~1200m/min. Alumina (aluminum oxide powder or corundum) grinding wheel should be used at a lower speed, such as 550~600min.Medium granularity is also required.

(2) Adopt low grinding wheel speed and feed speed; Due to the low speed of the grinding wheel, less sparks are generated.

(3) the titanium spark encountered oil fog may fire, but all the oil immersed in the workpiece, can reduce this danger. A rust-proof aqueous solution of ammonium nitrite completely eliminates the risk of fire.

(4) with buffer or cutting liquid cooling agent cooling, with ceramic binder and chlorinated or vulcanized cutting oil, you can obtain good results. No matter what type of coolant is used, it should be well filtered to eliminate the "fishtail" stain caused by the recirculation of titanium particles.