An interface between design and production

1. A. Ebenezer Raja
Asst. Professor
Dept of Management Studies
Bishop Heber College
Process Planning – an overview

2. Introduction
The manufacturing process selected must be an
economical balance of materials, manpower, product
design, tooling and equipment, plant space, and
many other factors influencing cost and practicality.
The process must be selected in such a way that the
produced product will be acceptable to the consumer
functionally, economically and appearance--wise

3. PROCESS PLANNING
Design Machine
Tool
Scheduling and Production Control
Process
Planning

4.  How can we make it?
 How much does it cost?
 How long will it take us to complete it?
 How reliable will it be?
 How can we recycle it

5. PROCESS
PLAN
• The detailed plan contains:
route
processes
process parameters
machine and tool selections
fixtures
• How detail the plan is depends on the application.

6. FACTORS AFFECTING PROCESS
PLAN SELECTION
 • Shape
 • Tolerance
 • Surface finish
 • Size
 • Material type
 • Quantity
 • Value of the product
 • Urgency
 • Manufacturing system itself

7. INFORMATIONS REQUIRED TO DO PROCESS
PLANNING
 Quantity of work to be done along with product
specifications.
 Quality of work to be completed.
 Availability of equipments, tools and personnel’s.
 Sequence in which operations will be performed on
the raw material.
 Names of equipment on which the operations will be
performed.
 Standard time for each operation.
 When the operations will be performed?

8. PROCESS PLANNING STEPS
 Product Design
 (Making/Function/Selling)
 Materials list
 Sequence of operations
 Tool design
 Layout
 Control system

9. COMPUTER-AIDED
PROCESS PLANNING
ADVANTAGES
1. It can reduce the skill required of a planner.
2. It can reduce the process planning time.
3. It can reduce both process planning and manufacturing
cost.
4. It can create more consistent plans.
5. It can produce more accurate plans.
6. It can increase productivity.

10. The Engineering Approach
„
 Establish the process objectives
 Collect all the facts about the problem
 Plan alternative processes
 Evaluate alternative processes
 Develop a course of action
 Follow up to assure action and check results

11. Thank you