Manufacturing processes test 4
welding - Answer-Joining process in which two (or more) parts are coalesced at their contacting surfaces
by application of heat and/or pressure
Limitations and Drawbacks of Welding - Answer-Most welding operations are performed manually and
are expensive in terms of labor cost
Most welding processes utilize high energy and are inherently dangerous
Welded joints do not allow for convenient disassembly
Welded joints can have quality defects that are difficult to detect
Faying surfaces - Answer-The part surfaces in contact or close proximity that are being joined
Fusion welding - Answer-Joining processes that melt the base metals
Fusion welding processes - Answer-Arc welding
Resistance welding
Oxyfuel gas welding
Arc welding - Answer-melting of the metals is accomplished by an electric arc
Resistance welding - Answer-melting is accomplished by heat from resistance to an electrical current
between faying surfaces held together under pressure
Oxyfuel gas welding - Answer-melting is accomplished by an oxyfuel gas such as acetylene
, Solid state welding - Answer-Joining processes in which coalescence results from application of pressure
alone or a combination of heat and pressure
Solid state welding Processes - Answer-Diffusion welding
Friction welding
Ultrasonic welding
Diffusion welding - Answer-coalescence is by solid state fusion between two surfaces held together
under pressure at elevated temperature
Friction welding - Answer-coalescence by heat of friction between two surfaces
Ultrasonic welding - Answer-coalescence by ultrasonic oscillating motion in a direction parallel to
contacting surfaces of two parts held together under pressure
Weld joint - Answer-The junction of the edges or surfaces of parts that have been joined by welding
five types of joints - Answer-Butt joint
corner joint
lap joint
tee joint
edge joint
Butt joint - Answer-
corner joint - Answer-
welding - Answer-Joining process in which two (or more) parts are coalesced at their contacting surfaces
by application of heat and/or pressure
Limitations and Drawbacks of Welding - Answer-Most welding operations are performed manually and
are expensive in terms of labor cost
Most welding processes utilize high energy and are inherently dangerous
Welded joints do not allow for convenient disassembly
Welded joints can have quality defects that are difficult to detect
Faying surfaces - Answer-The part surfaces in contact or close proximity that are being joined
Fusion welding - Answer-Joining processes that melt the base metals
Fusion welding processes - Answer-Arc welding
Resistance welding
Oxyfuel gas welding
Arc welding - Answer-melting of the metals is accomplished by an electric arc
Resistance welding - Answer-melting is accomplished by heat from resistance to an electrical current
between faying surfaces held together under pressure
Oxyfuel gas welding - Answer-melting is accomplished by an oxyfuel gas such as acetylene
, Solid state welding - Answer-Joining processes in which coalescence results from application of pressure
alone or a combination of heat and pressure
Solid state welding Processes - Answer-Diffusion welding
Friction welding
Ultrasonic welding
Diffusion welding - Answer-coalescence is by solid state fusion between two surfaces held together
under pressure at elevated temperature
Friction welding - Answer-coalescence by heat of friction between two surfaces
Ultrasonic welding - Answer-coalescence by ultrasonic oscillating motion in a direction parallel to
contacting surfaces of two parts held together under pressure
Weld joint - Answer-The junction of the edges or surfaces of parts that have been joined by welding
five types of joints - Answer-Butt joint
corner joint
lap joint
tee joint
edge joint
Butt joint - Answer-
corner joint - Answer-
