Comparing Coolant and Lubricant as Cutting Fluid

Metalworking lubrication systems and fluid come in handy in metal cutting to prevent poor machinability, high wear and tear rate, and chatter marks. Cooling and lubrication are the commonly used cutting fluids in the process. For lubrication, the lubrication fluid minimizes the co-efficient friction and heat generation during metal cutting.

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For cooling, the fluid eliminates any heat from the machine zone, protecting the job and tool from overheating.

Lubricant fluids minimize heat generation rate without any effect on previously generated heat. On the other hand, coolants can’t minimize heat production rate. Water can be a coolant fluid due to its high specific heat capacity. On the other hand, water has low lubricity; hence it isn’t a good lubricant.

Coolants escalate the tool’s lifespan, while lubricant escalates the durability of the moving parts of a machine. Due to the presence of water, oxidation occurs in the coolant, but it doesn’t occur in a lubricant. Lubricants are effective when used on human skin and machinery, while coolants should only be used on machinery. In the form of appearance, lubricants have an oil-based appearance, while coolants seem more like liquids. For effective results, adhere to the quantity usage of coolants and lubricants.


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