Meal Wastage Processes Flashcards
In laser cutting, what is used to focus the laser?
A focal lense
How is material removed from the sheet material in laser cutting?
High pressure gas blows the material through the sheet material
What are the e benefits of laser cutting?
It has a fine tolerance (usually less than 1mm), more accurate and uses less energy than plasma cutting
What is the one negative of laser cutting compared with plasma cutting?
It can’t cut to as great depths as plasma cutting
What is softwares used for in pinching which improves efficiency of materials?
To do nesting
What action is used on sheet metal in punching?
Sheering action
What axis does punching work on?
X and Y
What are the lower and upper parts capers in punching?
Punch(upper), die(lower)
What metals is punching normally used for?
Metals 0.5mm- 0.6mm
In plasma cutting, what is used to create the plasma?
Oxygen is combined with an electric arc to create the plasma
What high temperature can the plasma get to which allows it to penetrate the material?
28,000 degrees
Why is flame cutting economical?
Equipment is readily available and can be carried out at any location because electricity is not required
What gas is used in flame cutting?
Oxy-acetylene gas
In flame cutting , when a melt pool forms, the hat is done next to fully cut the material?
A jet of oxygen is added to intensify the flame ( is then moved along the cutting path)
What machine is turning done on?
Centre lathe!
What axis can a milking machine work on?
X, Y, and Z
What can MILLING be used for?
Cutting slots, shaping the edge or surface of a workpiece
What is added to the workpiece and cutting tool in TURNING and why?
Liquid coolant to prevent blunting
What are the negatives of FLAME CUTTING?
Hard to do a parallel line and there may be deformation
What is the job of the arc starting console in PLASMA CUTTING?
Provides a spark inside torch to start plasma arc
What is the use of the plasma torch in PLASMA CUTTING?
Contains an electrode and nozzle. Torch can be manually controlled or controlled by CNC machine
