When machining stainless steels it important to ensure that there is no dwell or rubbing caused by machine vibration or tool chatter.
Milling stainless steel without coolant.
Chipbreaker roughers would make an excellent choice in either 5 or 7 flute styles while standard 5 7 flute variable pitch end mills can also perform well in hem toolpaths.
With mist lubrication coolant volume drops to less than 50 ml hour compared to typical flood coolant volume exceeding 6 liter min.
That was the case with this stavax 420 stainless steel mold core.
Mql and dry machining tips.
Helical solutions offers the hev 5 end mill which is an.
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.
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.
So lets combine all these factors.
High efficiency milling can be a very effective machining technique in stainless steels if the correct tools are selected.
For stainless steel you ll want to use a coolant with a high oil content like straight oil since it has the stickiness associated with aluminum but with the hardness of steel.
Therefore dry machining is best suited to steel cast iron and some stainless steel.
Small training or hobbies lathes and.
Dry turning is relatively rare for example compared to dry milling.
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.