Introduction to Grinding Fluids

Provided by: ToolingU

"Introduction to Grinding Fluids" provides an overview of the uses, types, and selection considerations of grinding fluids, or coolants, used in various machining operations. Appropriate grinding fluid use depends on the type of operation, machine tool, and combination of tool and workpiece materials. The basic types of grinding fluids include various combinations of oils, water, chemicals, and additives, and are classified by their contents. The class describes each category of fluid, its optimal uses, benefits, and drawbacks, as well as ideal delivery methods, maintenance, and basic fluid safety and disposal. Selecting, using, and maintaining the appropriate grinding fluid is a key factor in the success of a grinding operation. Proper coolant application can optimize wheel performance and improve finished parts, reducing scrap and tool cost. Additionally, awareness of grinding fluid hazards and maintenance can increase workplace safety and reduce coolant costs.

Course Objectives:

  • List the functions of grinding fluid
  • Describe the relationship between friction and heat in grinding
  • Describe the necessary safety precautions for working with grinding fluids
  • Describe straight oils
  • Describe soluble oils
  • Describe synthetic fluids
  • Describe semi-synthetic fluids
  • Describe the considerations for selecting a grinding fluid
  • Describe the methods of grinding fluid delivery
  • Describe the appropriate levels of grinding fluid concentrate
  • Describe water quality considerations
  • Describe how grinding fluid can become contaminated
  • List the methods of cleaning grinding fluids
  • Describe grinding fluid disposal
  • Describe dry grinding.

Recommended Background

  • Recommended for manufacturing personnel handling surface/cylindrical/centreless grinding equipment etc.

Course ID







Communication, Critical Thinking, Personal Effectiveness, Grinding Fluids, Grinding Operations

Method of Delivery


Estimated Effort

2.5 hrs



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