Prerequisites of PPC

NAME: VIVEK JITENDRA PANCHALROLL NO : 1215139BATCH : A-4 SUBJECT : PPC PROJECT : Prerequisites of PPC

Why Prerequisites of PPC?

• Installing PPC department (not

easy)

• Requires lots of preparatory work

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

Elements3. 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.

Elements5. 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)

Elements7. Tool life:

a) Life spanb) 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