Im using a small colchester centre lathe
2006-12-01 09:32:56 · 3 answers · asked by middy 1 in Science & Mathematics ➔ Engineering
all depends on the metal you turning. speeds and feeds vary depending on machinability of the metal. also whether you are using HSS or carbide tools...
2006-12-01 09:36:59 · answer #1 · answered by R Stoofaloh 4 · 0⤊ 0⤋
Given that this is possible on the lathe quoted.
Metal-
Brass, Copper, Mild Steel, Stainless Steel, Tool Steel, Aluminium Electron, Bronze, Manganese Bronze, Cast Iron, Nodular Iron. All need different speed and feeds.
Billet Work and Forgings are different again and Turning is hardly ever concerned with just one diameter.
Cooling
Dry or Wet,
Pressurised or Drip, Through the tool bit?
Coolant
Soluble oil and soap, Mineral Oil, Whale Oil.
You need an apprenticeship.
2006-12-02 06:58:16 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Speeds are calculated knowing that the circumference of a piece of work is pi times the diameter, and that you are seeing one circumference of material for every revolution of the lathe. From this relationship, speeds in feet per minute may be calculated from circumference in inches time RPM's of the work piece to get speeds in inches per minute.
Feeds are simply distance per rev for in-feed and cross-feed.
Speed and feed work is art, not science. You are trying to be as productive as possible (fast) without causing chatter (too high of cutting forces). This takes some adjustment and feel.
2006-12-01 17:52:21 · answer #3 · answered by www.HaysEngineering.com 4 · 0⤊ 0⤋