Search results
Results From The WOW.Com Content Network
Cutting speed may be defined as the rate at the workpiece surface, irrespective of the machining operation used. A cutting speed for mild steel of 100 ft/min is the same whether it is the speed of the cutter passing over the workpiece, such as in a turning operation, or the speed of the cutter moving past a workpiece, such as in a milling operation.
SFM is a combination of diameter and the velocity of the material measured in feet-per-minute as the spindle of a milling machine or lathe. 1 SFM equals 0.00508 surface meter per second (meter per second, or m/s, is the SI unit of speed). The faster the spindle turns, and/or the larger the diameter, the higher the SFM.
Z= Shift amount in Z direction (Negative because cutting is done in negative Z direction) F= Feed rate; H= Feed rate for finishing cut; S= Spindle speed; L= Number of cycle repetitions; M= Miscellaneous functions; A, B, C and D are used for Rectangular pocket machining. A= Machining allowance; B= Step over; C= Step depth; D= Additional depth of ...
Knee mill or knee-and-column mill refers to any milling machine whose x-y table rides up and down the column on a vertically adjustable knee. This includes Bridgeports. This includes Bridgeports. Planer-style mill (Plano Milling)Large mills built in the same configuration as planers except with a milling spindle instead of a planing head.
Double pivot spindle head 1 rotating Y axis 1 rotating Z axis 0 Stationary base allows for heavy parts to be milled; Ideal for milling non-round objects; Rotary table and table trunion 0 1 rotating Z axis 1 rotating axis 45° between X & Y axes Similar to a Double Rotary Table, but the 45° axis allows it to be more compact; Most cost-effective ...
The percent of energy carried away in the chip increases as the speed of the cutting operation increases. This somewhat offsets the tool wear from increased cutting speeds. In fact, if not for the energy taken away in the chip increasing as cutting speed is increased; the tool would wear more quickly than is found.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
A schematic diagram of the centerless grinding process. Centerless grinding is a machining process that uses abrasive cutting to remove material from a workpiece. [1] Centerless grinding differs from centered grinding operations in that no spindle or fixture is used to locate and secure the workpiece; [2] the workpiece is secured between two rotary grinding wheels, and the speed of their ...