feed rate workpiece

General Lathe Operations | Smithy - Detroit Machine Tools

Feed Feed is the term applied to the distance the tool bit advances along the work for each revolution of the lathe spindle. Feed is measured in inches or millimeters per revolution, depending on the lathe used and the operator's system of measurement.

Speeds and feeds - Wikipedia

The phrase speeds and feeds or feeds and speeds refers to two separate velocities in machine tool practice, cutting speed and feed rate. They are often considered as a pair because of their combined effect on the cutting process.

Effects of cutting edge geometry, workpiece hardness, …

Abstract. In this study, the effects of cutting edge geometry, workpiece hardness, feed rate and cutting speed on surface roughness and resultant forces in the finish hard turning of AISI H13 steel were experimentally investigated.

EP0018710A1 - A method of machining a workpiece, and …

A comparison of actual motor speed (Ns) and base speed N b is effected, and feed rate is controlled so that at motor speeds (Ns) below N b cutter feed rate (fr) is dependent upon motor speed (and hence power) and so that at motor speeds (Ns) above N b cutter feed rate maintains a maximum value (frmax) (dependent upon circumferential speed Vc, maximum motor power output Pmax, and cutter ...

Cutting Time for Facing | Cutting Tool Engineering

A sample calculation using the same workpiece diameter, feed rate and rpm instead of the cutting speed is shown in Table 3. Comparison between the two methods of facing shows that machining at a constant sfm (0.98 minutes) requires significantly less time than machining at a constant rpm (1.90 minutes).

Unit 2: Speed and Feed – Manufacturing Processes 4-5

Determine the spindle speed (RPM) and feed rate (IPM) for a milling operation, as well as the cut time for a given cut length. Milling operations remove material by feeding a workpiece into a rotating cutting tool with sharp teeth, such as an end mill or face mill.

Lathe Cutting Tool Types and Operations - MIT

Feed rate is defined as the distance the tool travels during one revolution of the part. Cutting speed and feed determines the surface finish, power requirements, and material removal rate. The primary factor in choosing feed and speed is the material to be cut. However, one should also consider material of the tool, rigidity of the workpiece, size and condition of the lathe, and depth of cut ...


The higher cross-feed rates, which may be, exceptionally, even in the order of 1/2 to 1/3 wheel width, are used for roughing, particularly of work materials having low hardness. For finishing, as well as for grinding high strength or sensitive materials, a slow cross feed, in …

Drilling Speeds and Feeds - UF MAE

Drilling Speeds and Feeds The speed of a drill is measured in terms of the rate at which the outside or periphery of the tool moves in relation to the work being drilled.

Turning Speed and Feed Calculator - CustomPart.Net

Determine the spindle speed (RPM) and feed rate (IPM) for a turning operation, as well as the cut time for a given cut length. Turning operations remove material from a rotating workpiece by feeding a single-point cutting tool axially, along the side of the workpiece.

Speed and Feed for the Lathe 301 - toolingu.com

The rate that the workpiece surface and cutting tool pass each other at the point of contact. Speed on a lathe refers to the rotation of the workpiece in the spindle. Speed on a lathe refers to the rotation of the workpiece in the spindle.

What is feed in machining? - Quora

Feed is the rate at which the cutting tool crosses the workpiece; it's the rate at which metal is removed in the direction of that tool's travel, and it is differentiated from speed, which is the speed of rotation of the milling cutter or of the workpiece (if on a lathe); speed measures the rate at which metal is removed perpendicular to the tool's travel.

What is Feed Rate in Machining? Its Unit, Value, Effects ...

Feed rate is one of the cutting parameters, which is provided for moving the tool against the workpiece for covering the entire surface to be machined. Usually it is imparted in a direction perpendicular to cutting velocity; however, the angle between cutting velocity vector and feed vector may also deviate from 90º. The following schematic diagram for straight turning operation shows the ...

Gas metal arc welding - Wikipedia

Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) welding or metal active gas (MAG) welding, is a welding process in which an electric arc forms between a consumable MIG wire electrode and the workpiece metal(s), which heats the workpiece metal(s), causing them to melt and join.

Machining Equations (Turning) - University of Iowa

©R. Jerz 5 Mar-06 Turning OperationTurning Operation Figure 23.3 Schematic illustration of the basic turning operation, showing depth-of-cut, d; feed, f; and spindle rotational speed, N in rev/min. Cutting speed is the surface