A PRESENTATION

ON QUALITY CONTROL TECHNOLOGY

1

By:Gaurav GunjanB.Tech Final YearDept. of Mechanical Engineering

Contents:-

1. Quality

2. Types Of Inspection

3. Quality Control

4. Types Of Quality Control

5. Analytical Quality Control

6. Statistical Quality Control

7. Good Manufacturing Process

8. Quality Assurance

9. Conclusion

What Is Quality ?

The quality of a product is the “degree of perfection” i.e. the

totality of features and characteristics of a product or service

that bears on its ability to satisfy the needs of the customers.

The quality of a product depends

upon a number of factors such as design and specifications,

production process, quality of raw materials used, quality of

machines and equipments, man power expertise and skill and

the inspection.

Types of Inspection:

Depending upon the objective, inspection can be of two types, namely, preventive and corrective. The primary purpose of it is to discover the defective parts that have already been manufactured and prevent their use in the final product. The idea is to prevent the inferior parts from further processing down the production line in order to reduce the cost of production.

What is Quality Control?Quality control is defined as an industrial management technique by means of which products of uniform acceptable quality are manufactured.

It is a Process or system for monitoring the quality of laboratory testing, and the accuracy and precision of results.

What is the goal of QC?

To detect SIGNIFICANT errors rapidly

Report out good results in a timely manner

Be cost effective and simple to use

If there is an error, identify the source of the error

What is an error???

A wrong answer. A significant error is

one that changes the diagnosis

Wrong answers can be caused by random

errors or by systematic errors

Types of Errors

Random

Fluctuations

Temperature

Personnel

Systematic Reagent problem Device problem

Types of Quality Control:-

Internal Quality Control

When a company institutes protocol to check their system, this is called internal quality control.

External Quality Control

When products or data is sent to an outside business not affiliated with the company, this is external control. One example of external control is in food production.

Analytical Quality Control

Analytical quality control, commonly shortened to AQC refers to all those processes and procedures designed to ensure that the results of laboratory analysis are consistent, comparable,accurate and within specified limits of precision.

In well managed laboratories, AQC processes are built into the routine operations of the laboratory often by the random introduction of known standards in to the sample stream or by the use of spiked samples.

Statistical Quality Control (SQC)A process by which a product/service is checked during its creation using certain set parameters and statistical techniques to measure and analyze the variation within the process.

WHAT IS IT USED FOR:

To monitor the consistency of product/service quality and maintain processes to a fixed target as designed.To drive improvement actions within an organization.

Advantages of Statistical Quality Control (SQC):

The advantages of SQC are as follows:-

(1) It ensures control, maintenance and improvement in the quality standards.(2) It provides better quality assurance at lower cost of inspection.(3) It reduces the wastages of time and materials to the minimum. (4) The very presence of SQC policy in an organization improves and makes them quality conscious. (5) It provides basis for resolving differences among the various interests in the organization.

What can be controlled using SQC?

VARIABLES

Variable Measures are those that can be measured on a

continuous scale, for example length, time,

weight....

ATTRIBUTES

Attributes are characteristics that are assessed by judgement i.e. have two states such as right or wrong, looks

OK or not OK.

Good Manufacturing Practice

A good manufacturing practice (GMP) is a production and testing practice that helps to ensure a quality product.

Basic concepts of all of these guidelines to safeguard the health of the patient as well as producing good quality medicine, medical devices or active pharmaceutical products.

Quality Assurance

Quality assurance (QA) refers to the systematic activities implemented in a quality system so that quality requirements for a product or service will be fulfilled. 

QA includes management of the quality of raw materials, assemblies, products and components, services related to production, and management, production and inspection processes

Conclusion:

When it comes to our focus, we understand that when quality control makes sure the end product meets the quality requirements, quality assurance makes sure that the process of manufacturing the product does adhere to standards.So Quality control can be noted as a reactive process.

THANK YOU FOR YOUR PATIENCE

ANYQUERY