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Prerequisites of ppc
1. Prerequisites of PPC
NAME: VIVEK JITENDRA PANCHAL
ROLL NO : 1215139
BATCH : A-4
SUBJECT : PPC
PROJECT : Prerequisites of PPC
2. Why Prerequisites of PPC?
• Installing PPC department (not
easy)
• Requires lots of preparatory
work
3. Elements
1. Design data:
• Approved design of the products
• Drawing of all parts
• Sub-assemblies manufactured and purchased with bill
of materials.
2. Equipment data:
• Each type of machine
• Task which can be performed
• Different speed and feeds
• Limitations in terms of configuration
eg: maximum tool travel, maximum depth of cut etc
5. Elements
3. Performance standard (required):
• Machine set-ups (called set-up time).
• Regular production (called processing time).
• Process planner (optimum manufacturing process).
• Scheduler to determine individual machine capacity.
• Industrial engineering department.
4. Raw material data:
• Information.
• List of jobs.
• Consideration of machining allowances.
7. Elements
5. Tooling data:
• Standard cutting tools (drills, reamers, milling cutters,
gear hobs)
• Standard machine aids (collets, work arbors, tool
arbors)
• Special cutting tools (form tools, special hobs, gear
shaping cutters)
• measuring instruments and gauges (verniers, bore dial
plug gauges, snap gauges)
6. Labour data:
• Information (skills, payment rates, qualification ,work
experience)
8. Elements
7. Tool life:
a) Life span
b) Cost
8. Economic lot size:
• Bigger lots (reduce set up
cost but increase
inventory investment)
• Smaller lots (reduce
inventory investment but
increases set up cost.)
9. System for operating
functions:
• Order preparation
• Material control
• Process planning
• Preparation of tool card
• Scheduling
• Dispatching
• Controlling production