Cylinder head Spring platform Objective: This tool is Unimerco’s first CFS tool solution. The aim was to create a tool for machining spring platforms, leaving no chips stuck in the cylinder head. This would eleminate the following manual inspection and cleaning process. The previous solution ran at 2 000 mm/ min feed rate and 10 000 rpm, while tool life was 5 000 holes. Achievements P ENTED AT Flo PATENTLÖSUNG • 24 seconds saved per cylinder head • Elimination of manual chip removal process PA T E NT D Chip S tem CF w Sys E S tem Unimerco tool solution: CF w Sys lo F ip CFS PCD reamer on solid carbide tool C body. h The CFS (Chip Flow System) feature was developed FS C and patented in close cooperation with a customer. The tem w Sys lo F hip C CFS feature ensures that all chips are held in the flute, until they are released at the top of the flute. Adjustable UM Dandia toolholder to ensure optimum run out. Unimerco tool no.: 250800/000005 Result: All chips are safely removed from the cylinder head, thus eliminating the need for subsequent manual inspection and cleaning. The feed rate was doubled, thus saving 2.4 seconds per cylinder head (16 holes) Data • 10 000 rpm • 4 000 mm/min feed rate • Tool life 1 000 000 holes • Tool costs = 0.02 euro/cylinder head CFS PCD reamer Introduction to CFS Grob twinspindle machining centre min 40 bar internal coolant 10% emulsion Material : ALSi9Mg w w w. u n i m e r c o . c o m
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