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"Cooling off" coolant

Vishrut

Aluminum
Joined
Dec 18, 2013
Location
India
Hi all,

Our usual CNC lathes utilise U-drills upto Dia 40mm. Through coolant, ofcourse.

We see quite rise in coolant temperature after few hours of work.

Would like to know has anyone addressed this issue before.

We use semi synthetic cutting oil, maintain 5-6 % concentration while using Indexable drills. Sump is about 150 litres.

What can be done to reduce temperatures ? I'm sure Spindle & Z-axis motors' power consumption goes up and insert life's affected with hot coolant....
 
TSC is basically atomizing cutting fluid at pressures like 300-1000psi, add in your cutting action and you're literally vaporizing the coolant at the cut. I see it in heavy aluminum roughing all the time. Big plumes of vapor like some kid is vaping inside the machine.

That heat gotta go somewhere. Is the coolant tank exceptionally small? As gregor says they make solutions for this problem
 
Many ways to skin this cat, a chiller is the "professional", and expensive, way to do it. Keep in mind that hot coolant is also heating up your castings, causing thermal movement.
 
Yes. That option is already thought for. But looking for any other options that might exist.

Sent from my Redmi Note 7 Pro using Tapatalk

Dig hole in floor.
Install tank in floor, surrounding soil will provide cooling.
 








 
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