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Consider the following statements: 1. HSS tools wear very rapidly, whereas in cemented carbide tools, even though hardness is retained, crater wear can occur due to solid-state diffusion. 2. Cutting tools made of Super-HSS, also known as cobalt-based HSS, are made by adding 2% to 15% of cobalt which increases the cutting efficiency at heavier cuts by increasing the hot hardness and wear resistance. 3. Tools failure due to excessive stress can be minimized by providing small or negative rake angles on brittle tool materials, protecting tool tip by providing large side-cutting edge angles, and honing a narrow chamfer along the cutting edge. Which of the above statements are correct?
Which of the following is not a characteristic of cemented carbide cutting tools?
For cemented carbide cutting tools, the compact is heated at __________
Cemented carbide cutting tools are
P. made by casting
Q. made of mainly WC and cobalt
R. made of Fe3C and cobalt
S. made by liquid phase sintering
What is the general categorisation of equipments for manufacturing garments?
1. Measuring tools
2. Marking tools
3. Cutting tools
4. Pressing tools
The binding material used in cemented carbide tools is
_________ of cemented carbide tools is used as a measure of wear performance.
The cemented carbide tools wear the most at ___________
The cutting performance of cemented carbide can be plotted as _________
Cemented carbide cutting tool is advantageous in mass production.