Machine Parts

Grinding drill bit: The cutting tool used most often in the drill press are twist drills. The flutes of the drill are spiral shape   and as well as carrying savings away   from the cutting edge, they actually from the cutting edges of the drill. As with any other cutting edges of the drill. As with any other drill cutting tool the drill has cutting tool the drill has cutting angles clearance angles and rank angles these angles may need to be changed for the drill to be used on some materials such as gray cast iron, alloy steels or plastics. Precautions of   a grinding Machine: i.                    Must always safety glasses of the operation duration.  ii.                  One should be learnt how to test a wheel for soundness before mounting it.  iii.               The work should not be measured before a revolving wheel. 

Introduction of  grinding machine: Grinding Machine: A grinding machine is a machine which employs a grinding wheel for producing cylindrical, conical or plane surfaces accurately and economically and to the proper shape size and finished.   Grinding machine is a type of machining using an abrasive wheel as the cutting tool. The surface stock is either removed by feed the work against the revolving wheel against workpice.  Power transmission System of a Grinding Machine: Motor   →   Pulley     →   Pulley   → Grinding Wheel. Three essentials in sharpening a twist drill: i.                    Drill point angles must be equal where each is 59   ͦ   and total angle is 118 ͦ. ii.                  Cutting lips of equal length.  iii.               Correct clearance behind the cutting lips   which is 8-12   ͦ