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Tools and the Manufacturing Process

( 'PCD Manufacturing Technology |', n.d.) .
             PCD tools are easier to handle and operate by a CNC operator because the tool improves the quality and productivity. PCD removes large amount of materials so in turn reduces the cycle rate. PCD is known to have three times more speed than a normal cutting tool that will result in reduced usage of the machine and less maintenance. PCD tools are known for their consistent cutting surface that leads to a smooth finished product and less product rejection. PCD tool has longer tool life that leads to more machine time and less tool changing time when compared to other tools. ( 'Benefits of PCD Tooling', n.d.).
             2) High Speed Steel (HSS).
             High-speed steel was manufactured in around 1905 and made a major break through in the history of cutting tools. HSS is manufacturing by casting molten steel in the desired shape. To achieve the strength and less wear and tear molten iron is mixed with 18% tungsten, 4% of Chromium, 1% of Vanadium and 0.7% of Carbon. All these joins together to form high speed steel when hardened and forms the desired shape of the tool required. (n.d.).
             Cuttings speeds of HSS for different operations and different materials are: .
             Work material.
             Drilling.
             Tapping.
             Milling.
             Free cutting steels.
             20-30.
             9-12.
             30-40.
             Mild steel .
             20-23.
             11-12.
             25-40.
             Medium carbon steel.
             14-20.
             8-11.
             20-30.
             Alloy steel.
             18-22.
             10-12.
             10-20.
             Stainless Steel.
             12-15.
             8-9.
             15-20.
             Cast iron.
             20-23.
             9-12.
             2-30.
             Titanium alloy.
             12-15.
             8-9.
             10-30.
             Aluminum alloys.
             35-55.
             14-18.
             60-100.
             Table 1: cutting speeds of HSS in m/min ( 'High Speed Steel versus Carbide in Metal Cutting - Why HSS is Still in Use', 2009).
             HSS tools can be coated with TiN that will increase HSS tools productivity. The titanium nitride coating will increase the wear resistance of the tool and also increase the tool life those increasing the productivity. ( 'High Speed Steel versus Carbide in Metal Cutting - Why HSS is Still in Use', 2009).
             Applications of HSS Tool.


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