TOLERANCES ON PARTS ( IQC 2 )

It is difficult to manufacture any product or component to its exact size. Tolerance on
the parts is therefore the amount of variation in size tolerated to cover reasonable imperfections in workmanship and it varies with different grades of work. 

Tolerance on a dimension can also be specified as the difference between the maximum limit of size and the minimum limit of size. It is equal to the algebraic difference between the upper and lower deviations and has an absolute value without sign.

 Its value is a function of the basic size and is designated by a number symbol, called the grade. 

There are two basic ways of specifying the working
tolerance: (1) bilateral and (2) unilateral, tolerances.

INSPECTION AND QUALITY CONTROL- INTRODUCTION [ IQC 1 ]

 Introduction

Inspection or checking of components or products with required specifications is very
minutely related with quality control. It is generally an accepted fact that no two things can
ever be exactly same. It also holds true with manufactured parts. Therefore certain variations or deviations in dimensions and other product specifications are accepted. 

However, only few produced articles or parts may be rejected if the deviations go beyond the specified quality standards. Therefore it becomes essential to detect errors so that the manufacturing of faulty product does not go uncorrected. 

Difference Between Quality Assurance And Quality Control

What is the difference between Quality Assurance and Quality Control?

ISO 9000 Definitions 1

• Quality Control : “A part of quality management focused on fulfilling quality requirements”.
• Quality Assurance : “A part of quality management focused on providing confidence that quality requirements will be fulfilled.”

Basic QA/QC Concepts

Quality Assurance (QA)

Refers to a broad plan for maintaining quality in all aspects of a program, including all quality
control measures, sample collection, sample analysis, data management, documentation,
evaluation, etc. It is helpful to data users in determining the integrity (soundness) of data.

Competencies employer generally look for during the time of interview

 Drive for achievement

o   Defined as: The individual grasps opportunities to achieve and exceed

o   their business and personal objectives;

o   success is a great motivator for them;

o   desires to perform tasks to the highest standards; is generally

o   positive and enthusiastic at all times;

o   does not suffer too greatly by setbacks

                                                o   and is tenacious

                                                o   is resourceful and self-driven;

                                                o   can accept  change and is flexible;

                                                o   has a high level of energy; leads by example.