Conversion of raw material into finished goods with the use of some operation is defined as a production

1. PROCESS ENGINEERING
S.Y.MALI
(Lecturer, Department of Mechanical Engineering ,
AISSMS Polytechnic , Pune)

2. Contents
• Introduction to production
• Factors of production
• Introduction to process engineering
• Information required for process engineering
• Preliminary part print analysis
• Planning of processes from raw material to finished product
• Factors affecting process planning
• Deciding sequence of operation Information required to determine operation
sequence
2

3. 3
• 1)Conversion of raw material into finished goods with the use of some
operation is defined as production
• 2)Production is defined as “the step by step conversion of one form of material
into another form through some process to create or enhance the utility of the
product to the user
• 3)The word production is equally used for providing services to people like
bank,hotels,educational institutions,theater,travels and tourism etc
• 4)It is the process through which goods or services are created by performing a
set of operation on raw material
Introduction to production

4. Production System
• A system is a group of several units joined together to achieve a common
goal.Each system has three common element and they are input,processing
and output.
• The input to a system can be in the form of ‘4m’ i.e Men,material,money and
machines
• The input are processed by a service of operation in a predetermined
sequence.
• The output by a system is either finished goods or services
4

5. Factors of production
• The various factors of production are explained below
• 1)Land
• 2)Labour
• 3)Capital
• 4) Entrepreneur
5

6. Introduction to process engineering
• Process engineering also sometimes called as process planning is a system or a
process responsible for the conversion of raw material into finished products
by the most economical way within the limits of design specification.
• It can be defined as the systematic determination of the processes by which a
product is to be manufactured economically and competitively
• The process planning consist of activities like determining sequence of
operation to be performed,selecting the proper machines,specifying tools,jigs
and fixture,specifying the material to be used,giving the details like speed,feed
and depth of cut,specifying the inspection stages etc
6

7. Function of process engineering
• To determine the basic manufacturing process
• To determine the sequence of operation
• To determine the equipments and tooling required
• To originate the orders for the process revision if necessary
7

8. Information required for process engineering
• 1.Engineering drawing of the component
• 2.Knowledge of manufacturing processes
• 3.Knowledge of various tooling and fixtures
• 4.Resource available in the factory
• 5.Relative costs of various processes ,tooling and raw material
• 6.Ability to do computation on machining time and cost
• 7.Knowledge to use reference books,such as machinabilty data handbook
8

9. Preliminary part print analysis
• General description of the part
• General configuration of the part
• Material from which the part is made
• Basic manufacturing process
• Design modification
9

10. Planning of processes from raw material to finished
product
• 1.Part print analysis:
• 2.Make or buy decision:.
• 3.Selection of basic manufacturing process:
• 4.Determine the sequence of operation:
• 5.Combine the operation:
• 6.Selection of machine tools and equipments:
• 7.Inspection:
• 8.Miscellaneous function:
• 9.Preparation of operation and route sheet:
10

11. Factors affecting process planning
• 1.Production methods:
• 2.Size and type of raw material:
• 3.Process Capability:
• 4.Quantity to be manufactured:
• 5.Delivery dates of products:
• 6.Surface finish and accuracy required:
11

12. Deciding sequence of operation
• 1.Basic processes:
• 2.Principal processes:
• 3.Major operation:
• 4.Auxiliary operation:
• 5.Supporting Operation:
12

13. Information required to determine operation sequence
• 1.List of machines available
• 2.List of tooling
• 3.Capability of machine and equipment
• 4.Plant layout
• 5.Machine load chart
• 6.Standard time data
13

14. Thank You !
www.aissmspoly.org