The document discusses various aspects of manufacturing efficiency, including product qualities, lead times, and machine utilization. It emphasizes the importance of effective resource utilization, quality control, and the ability to adapt to changes in production. Additionally, it highlights the significance of throughput and investment in work-in-progress (WIP) for optimizing production performance.

1. BY- HARSHADA GURAV
CAD ME
ROLL NO. 5

2.  Product qualities-
◦ low cast
◦ high quality
◦ good service and innovation.
◦ Product diversity
◦ Delivery time performance
◦ Reducing non value adding activities

3. Performance
Measures
Manufacturing
lead time
Work in
process
Machine
utilization
Throughput
Capacity
Flexibility
Performability
Quality

4.  Total lead time- Time required from the instant at which
raw material is ordered until finished product is delivered.
 Manufacturing Lead time- It is time required to process
the product through manufacturing plant.
Manufacturing
Lead time
Setup
Time
Proces
sing
Time
Move
Time
Queue
Time

5.  It is amount of semi finished product currently
resident on the factory floor.
 The semi finished product is either being
processed or waiting for next processing
operation.
 Investment during WIP is by firm.

6.  Machine utilization affects the cost.
 High price machines should not remain idle.
 Manufacturing efficiency is measured in terms of
machine utilization.
 Effective resource utilization –
Right quantity
right things
At right time

7.  It is hourly or daily production rate.
 Reciprocal of throughput production time per unit
of product

8.  It is maximum possible output of the transformation
process the plant is able to produce over some
specified duration.
 It can be measured as machine hours available per
week or number of units produced per week and so
on..

9.  Ability of system to respond effectively to change.
Changing
circumstances
Internal changes
Breakdown
Variability of
processing time
Worker absenteeism
Quality problems
External
changes
Design
Demand
Product-mix

10.  It is factor which influences system performance in
unscheduled downtime.
 It is essential for survival of a plant and depends on
the ratio of high productivity to high payback
 It depends on reliability and availability.

11.  Customer requirements and specifications.
 Quality at source- Errors should be caught &
corrected at the source.
TQC
Principles
Process
control
Easy to see
quality
Insistence
on
compliance
100%
inspection