Feeds & Speeds

• = Suggestion found on the internet

“6065 is not good for milling, better use 7075”

• Cutwel 1-Flute 3mm, 20krpm, 1100mm/min, 0.5D depth, Vc(?) 188mm/min, fz(?) 0.055 mm/tooth
  • Or TL;DR: 100mm/min at 0.5mm DOC, 50mm/min at 1mm DOC.
• Cheap chinesse 3mm milling cutter. <250mm/min, 1mm pass
  • Yomismo Elmio on YouTube
• Cheap 0.5mm drill (PCB type)
  • Feed 50mm/min, 1mm peck, use a collet because it snaps due to the wobble in the chuck!

• Cheap 0.5mm drill (PCB type)
  • 5krpm, Feed 100mm/min, 1mm peck, use a collet because it snaps due to the wobble in the chuck, stop between holes to clean any melted plastic off the bit
• Cutwel 1-Flute 3mm, 20krpm, 100mm/min, 1mm depth

• “Moderate speed, heavy ish feed. If it melts back down the speed, if its then happy, up the feed.” PracticalMachinist
• https://www.boedeker.com/Technical-Resources/Technical-Library/Plastic-Machining-Guidelines

• Polyamide 12mm with 1mm per layer, 600mm/min with 1/8“ endmill
  • Sergii Khudolii on YouTube

• 3mm cutter, Pass: 0.25 mm Speed: 300 Feedrate
  • Yomismo Elmio on YouTube

• Slitting of a 6mm hardened steel shaft using carborundum disc. Speed is 11,000rpm, fed by hand, with a 0.25mm feed rate per pass.

• It is important to obtain an engraved depth of .035” (0.9mm) for paint fill - source https://www.jpplus.com/pro-color-fill?sku=SUS052-EA