HPC has long been utilised in specialised machining operations, such as with Gun drilling machines – to eliminate chips and improve surface finish. With the advances in coolant fed tooling and HPC technology, practically any machining application can benefit in increased profitability, productivity, maximum tool life and minimal cycle times provided from high pressure coolant usage.
Witness the remarkable results that occur when 70bar (1,000psi) coolant is applied to an 8mm dia solid carbide drill penetrating 75mm deep in M200 Tool Steel. Cutting data is 3,500rpm at 0.26mm/rev feedrate with no hole prep. Using conventional peck drilling with flood coolant and coated HSS drill took over one minute per hole. In this HPC example holes were created in under six seconds each.
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