Quality control

1. Quality control

2. Quality
• Quality + Control= Quality Control
• Quality refers to the sum of the attributes or
properties that describe a product or its
capacity to satisfy a given need.
• These are generally expressed in terms of
specific product characteristics such as shape,
dimension, composition, length, width, color
etc.

3. • Control consist of:
• It consist of setting standards,
appraising conformity with the
standard, taking corrective actions if
these standards are violated, and
planning for improvements.

4. Quality control
• Quality control is a management system for
initiating and cordinating:
– Quality development, quality maintenance and
quality improvement in the various departments
of design and manufacturing, for achieving the
twin objectives of:
Economical production and customer satisfaction

5. Characteristics
• It is conformance to quality specification.
• It apply on all stages of production.
• Concerned with making things right rather
than the discovering and rejecting those made
wrong.
• Cost reduction programme.
• Technique of production control.
• Management Tool
• It attempts to anticipate problems before they
occur.

6. Objectives of Q C
• It is to provide products which are
satisfactory and economical
• To ensure economic production of
products of uniform quality acceptable
to the customer
• Aims at preventing the defects rather
than detecting the defects

7. Need for quality
• Increased productivity
• Decrease in scraps & wastage
• Customer satisfaction
• Better profits
• Increase in Sales
• Reduction in Production cost
• Increase in goodwill

8. Need for quality
• Improve production technique
• Effective utilization of resources
• High employee morale
• Effective sales promotion
• Fulfillment of social responsibility
• Winning foreign markets

9. Stages of Quality Control
• Policy Stage
• Product Design Stage
• Material Procurement Stage
• Main Stores Stage
• Production Stage

10. Types of Quality Control
• Feedforward Quality Control
• Concurrent Quality Control
• Feedback Quality Control

11. Process of Quality Control
• Establishing Quality Policy and Programme
• Determination of Quality Standards and
Specification
• Inspection of Raw and In- process Material
• Application of Statistical Technique
• Inspection of Finished Products
• Control action and Feedback

12. ISO
• International Organisation for Standardisation
– Geneva
– 140 members
– 1979 – Genesis of ISO 9000

13. ISO 9000
• ISO 9000 standard represents an international
consensus on good management practices
with the aim of ensuring that the organisation
can time and again deliver the product or
services that meet the client’s quality
requirements. These good practices have
been distilled into a set of system, regardless
of what the organisation does, its size, or
whether it is private or public sector.

14. Techniques & Methods of QC
• Product Quality
• Process Control Engineering
• Quality Equipment Engineering
• Inspection
• Raw Material Control
• Standards & Specifications
• Control over Production Operations
• Checking of tools and Machines
• Procedures and Records

15. Techniques & Methods of QC
• Control Charts
• Acceptance Sampling
• Tolerance
• Total Quality Management (TQM)
• Location of Inspection Points
• Amount to Inspect
• Development of Quality Consciousness
• Quality Circles