Material Removal Processes in Manufacturing ME 240

These flashcards cover key concepts and terms related to Material Removal Processes in Manufacturing as outlined in the ME 240 lecture notes.

Material Removal Processes

Processes that involve removing material from a workpiece to achieve the desired shape, size, or finish.

Conventional Machining

A traditional method of material removal using a specially shaped tool with discrete cutting surfaces.

Abrasive Processes

Material removal processes that use hard abrasive particles to effect material removal.

•Grinding

•Honing

•Lapping

-Polishing

Nontraditional Processes

Techniques that remove material using mechanical, thermal, electrical, or chemical energy.

Machining

A material removal process that uses various machining operations such as milling, drilling, sawing, broaching and turning.

Material Removal Rate (MRR)

The volume of material removed per unit time during machining.

Tolerances

The permissible limit or limits of variation in a physical property or characteristic of a part.

Geometric Accuracy

The degree to which a geometric shape is achieved compared to the intended design shape.

Surface Finish

The texture and smoothness of a surface produced during machining.

CNC Machining

Computer Numerical Control machining which involves the use of computers to control machine tools.

Feed Rate

The speed at which the cutting tool advances into the workpiece.

Chip Formation

The process in machining whereby a small piece of material is cut away from the workpiece.

Turning

A machining process where a rotating workpiece is operated on by a cutting tool to remove material and shape the part.

Milling

A machining process that involves the movement of a rotating cutter to remove material from a workpiece.

Drilling

A machining operation that uses a drill bit to cut cylindrical holes in a workpiece.

Workpiece

The material or item that is being machined.

Tool Life

The duration of time or amount of work a tool can perform before it needs to be replaced.

Surface Speed

The speed at which the cutting edge of the tool passes over the surface of the workpiece.

Cutting Tool

A tool used to remove material from a workpiece during machining.

Tool Holding

The method of securing a tool in a machine tool setup to ensure stability and precision during machining.

Face Milling

A milling operation where the cutter's axis is perpendicular to the surface of the workpiece.

Peripheral Milling

A type of milling where the cutter's axis is parallel to the surface being milled.

Lathe

A machine tool used for turning operations to shape a workpiece.

Abrasive Waterjet

A machining process that uses high-pressure water mixed with abrasive particles to cut through materials.

Electrical Discharge Machining (EDM)

A nontraditional machining process that uses electrical discharges to remove material from a workpiece.

Laser Beam Machining

A nontraditional process using focused laser light to cut or engrave material.