STANDARD COMPETENCIES:

 

 I.      Recognize the plain cylindrical grinder and be able to identify its parts:

         A.      Base

         B.      Wheelhead

         C.      Table

         D.      Headstock

         E.      Tailstock

 II.     Recognize the universal cylindrical grinder:  The parts listed above as components:

         A.      Internal spindle

         B.      Workhead

         C.      Automatic controls

 III.    Recognize and identify cylindrical grinder accessories:

         A.      Center steady rest

         B.      Universal back rest

         C.      Radius truing attachment

         D.      Angular truing attachment

         E.      Collets and chucks

 IV.     Demonstrate proper mounting of the grinding wheel.

 V.      Demonstrate proper mounting of work between centers.

 VI.     Explain the danger of an excessively deep cut.

 VII.    Demonstrate setting all guards and other safety devices.

 VIII.   Explain the hazards of selecting an inappropriate wheel for a given work material.

 IX.     Recognize the necessity of reading the machine service manual.

 X       Explain the need to periodically do the following maintenance (common to all cylindrical grinders):

         A.      Check ways for lubrication

         B.      Use machine lubrication system

         C.      Check oil level and fill with proper oil necessary

         D.      Check hydraulic tank

         E.      Check spindle belts for wear and tension

         F.      Check coolant level

         G.      Check for excessive sludge at bottom of tank.

         H.      Clean filters

         I.      Clean inside of wheel guard

 XI.     Discuss the need to report all machine problems to school faculty.

         A.      Discuss the criteria for matching the wheel to the work material and job requirements.

 XII.    Recognize wheel selection variables:

         A.      Type abrasive

         B.      Grain size

         C.      Grade

 XIII.   Structure

 XIV.    Bonding material

 XV.     Review balancing and dressing a grinding wheel (skills learned in surface grinding).

 XVI.    Discuss the effects of wheel speed and feed rate.

 XVII.   Discuss the effect of cutting fluid on cutting action and surface finish.

 XVIII.  Demonstrate setup and operation of a cylindrical grinder on external surfaces and hold tolerances of .0005 inches.

 XIX.    Demonstrate operation of an external grinder to grind parallel diameters.

 XX      Describe the types of internal grinders and their operation:

         A.      Cylindrical grinder

         B.      Internal centerless grinder

         C.      Planetary internal grinder

         D.      Universal cylindrical grinder

 XXI.    Demonstrate setup and operation of a cylindrical grinder on internal surfaces and hold tolerances of .001 inches.

 XXII.   Demonstrate operation of an internal grinder to grind parallel diameters.

 TOPICAL OUTLINE:

 

 I.      Types: The Types of Center?type Cylindrical Grinders.

 II.     Safety: Safety in Setting Up and Operating the Cylindrical Grinder.

 III.    Preventive Maintenance: Preventive Maintenance for the Cylindrical Grinder.

 IV.     External Grinding: Setting Up and Operating the Cylindrical Grinder for External Grinding.

 V.      Internal Grinding: Setting Up and Operating the Cylindrical Grinder for Internal Grinding.