Basic activities to convert raw material into finished products:
Basic activities to convert raw material into finished products:
i. Processing and assembly operations
ii. Material handling
iii. Inspection and test
iv. Coordination and control
Processing operation transform a work material from one state of completion to a more advanced state that is closer to the final desired part/product. materials is fed into the process, energy is apply by the machinery and tooling to transform the material into finished products.
Processing operation transform a work material from one state of completion to a more advanced state that is closer to the final desired part/product. materials is fed into the process, energy is apply by the machinery and tooling to transform the material into finished products.
Assembly operations – two or more components combined to form a new entity
Eg: Welding, Soldering, Screws, Rivets etc.
Moving and storing materials between processing and/or assembly operations.
Moving and storing materials between processing and/or assembly operations.
Inspection and test
Both are quality control activities to determine whether products meet the design std. and spec.
Includes at process and plant levels
Includes at process and plant levels
Process level – manipulating input and parameters of the process.
Plants level – labor, maintenance, costing, shipping, scheduling etc.
4 keys parameters:
4 keys parameters:
i. Quality
ii. Variety
iii. Complexity of assembled products.
iv. Complexity of individual parts.
If no = Num. of distinct operation through which work units are routed.
If no = Num. of distinct operation through which work units are routed.
To increase/decrease prod. Capacity:
i. Short term:
changes of S and H will increase prod. Capacity
ii. Long term
to increase capacity, change n, increase Rp and reduce no.
