Milling Stainless Steel Without Coolant

That was the case with this stavax 420 stainless steel mold core.

Milling stainless steel without coolant. Machines must be substantial and capable of making the deep cuts needed in machining austenitic stainless steel without slowing down the set feed or surface speeds. With mist lubrication coolant volume drops to less than 50 ml hour compared to typical flood coolant volume exceeding 6 liter min. Also if we review the chart of suitability at the top of the article assume you need to be nearer the top of the chart. That s why you want to air blast coolant without fluid or oil.

Small training or hobbies lathes and. Mql and dry machining tips. When dry milling wasn t producing an acceptable surface finish the operator switched to using liquid coolant and the finish improved. Dry turning is relatively rare for example compared to dry milling.

So lets combine all these factors. Near dry machining with external mist lubrication is recommended when working in steel drilling holes deeper than five times the hole diameter and other applications where totally dry machining is not yet. Therefore dry machining is best suited to steel cast iron and some stainless steel. When machining stainless steels it important to ensure that there is no dwell or rubbing caused by machine vibration or tool chatter.

High efficiency milling can be a very effective machining technique in stainless steels if the correct tools are selected. Stainless steel can be gummy enough that coolant may be needed as a lubricant when a ball nose or other round profile tool is used.