Manufacturing Processes Flashcards
What are manufacturing processes?
A procedure that physically/chemically changes starting work material to increase value.
What are the twi basic types of manufacturing operations?
Processing operations - transforms workpiece to a more advanced state, closer to final desired product.
Assembly Operations - Joining of two or more components to make new entity, called an assembly.
What are the 3 types of processing operations?
- Shaping processes - Change geometry of work piece
- Property enhancing operations - improve physical properties without changing the shape.
- Surface Processing operations - cleans, treats coats surface of work piece.
What are the 5 shaping processes?
- Solidification
- Particulate
- Deformation
- Material removal/subtractive manufacturing
- Material Addition/additive manufacturing
What is solidification processing?
Material is heated to a liquid or semifluid, cools and solidifies to form the shape of the part.
What is Particulate processing?
Starting material is powder, formed to the part then heated to strengthen.
What is deformation processing?
Starting material is metal(ductile solid), deformed to create part.
What is Subtractive processing?
Solid where material is removed, whatever remains is the part.
What is Additive processing?
3D Printing - Making 3 dimensional solid object from a computer model.
What is property-enhancing processing?
Involves heating
Metals & glasses - Annealing & strengthening
Powdered metals & Crystalline ceramics - Sintering
What are the 3 surface processing operations?
- Cleaning - chemical and mechanical processes to removed dirt/ contaminants
- Surface treatments - Mechanical working(Sand blasting) or physical processes (diffusion)
- Coating - Applying coating to exterior (painting)
What are the two Assembly operations?
- Permanent joining processes
- Mechanical assembly
What are the 4 types of permanent joining processes?
-Welding
-Brazing
-soldering
-adhesive bonding
What are the two types of mechanical assembly?
-Threaded fasteners (joints that be disassembled)
-permanent fastening methods
What is design for manufacture?
Where a design should be as simple as possible so it is easily manufactured.
The design ands materials should be chosen wisely
specified dimensional accuracy and surface finish should be broad as its expensive.
