Mechanical Engineering - Production Engineering - Discussion

Machining operations of titanium alloys are considered to be difficult, due to its relatively high tensile strength, low ductile yield, Low tool-chip contact area.

Machining titanium is challenging due to the following factors:

Chemical reaction: Titanium tends to react with the cutting tool material at high temperatures, leading to tool wear and reduced tool life.
Low thermal conductivity: Titanium has low thermal conductivity, which causes heat to concentrate at the cutting edge, further accelerating tool wear.
Low tool-chip contact area: The contact area is relatively small, which increases cutting forces and heat generation.

However, the primary reason in this context is the chemical reaction between the tool and the workpiece.