8/04/2015

what do i need to know when cutting Titanium alloy?

(1) Due to the small elastic modulus of titanium alloys, deformation of the workpiece clamped in the processing of deformation and stress, will reduce the machining accuracy of the workpiece; clamping force of the workpiece installation should not be too large, increase the auxiliary support, if necessary.

(2) All workers, with titanium fixtures or other devices must be clean contact; via cleaned titanium parts, oil or fingerprints to prevent contamination, or future may cause salt (sodium chloride) stress corrosion.

(3) Under normal circumstances when machining titanium, no ignition danger only when trace cutting, small chips cut have ignition combustion phenomenon. To avoid fires, in addition to a large number of pouring coolant should prevent the accumulation of chips in the machine, the tool to be replaced immediately after blunt or reduce the cutting speed, feed rate increased to increase the chip thickness. If the case of fire, you should use talcum powder, limestone powder, dry sand, and other fire-fighting equipment were extinguished, it prohibited the use of carbon tetrachloride, carbon dioxide fire extinguisher, not water, because water can accelerate the burning, and even lead to a hydrogen explosion.

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