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Introduction to Quality Engineering / Quality Control

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AFAQAHMED JAMADAR
AFAQAHMED JAMADAR

Quality Control Introduction, Definition and concept of quality, Quality control, Set up policy and objectives of quality control Quality of design and quality of conformance Compromise between quality & cost Quality cost and planning for quality

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Anjuman-I-Islam’s, Kalsekar Technical Campus PROF AFAQAHMED QUALITY CONTROL
Quality control Quality control is a management system for initiati ng and coordinating: – Quality development, quality maintenance and qu ality improvement in the various departments of d esign and manufacturing, for achieving the twin o bjectives of: 1. Economical production 2. Customer satisfaction Anjuman-I-Islam’s, Kalsekar Technical Campus
Definition ASQC – Quality means the totality of features and chara cteristics of a product or service that bear on its ability t o satisfy given needs Quality is Fitness for USE (Juran) Quality is conformance to requirement (CORSBY) The efficient production of the quality that the market ex pects (DEMING) From customer’s perspective, quality of a good or servic e is fitness for use of it Customer satisfaction for the price of the productAnjuman-I-Islam’s, Kalsekar Technical Campus
Quality Dimensions of Product Quality  Performance (will the product do the intended job?)  Reliability (how often the product fails?)  Durability (how long the product lasts?)  Serviceability (how easy is to repair the product?)  Aesthetics  Features (what does the product do?)  Perceived quality (what is the reputation of a company or its products?) Anjuman-I-Islam’s, Kalsekar Technical Campus
Objectives / Importance of Q C 1. Improvement of quality 2. Reduction of scrap and rework 3. Efficient use of men and machines 4. Economy in use of materials 5. Removing production bottle-necks 6. Decreased inspection costs 7. Reduction in cost per unit 8. Scientific evaluation of quality and production 9. Quality caution at all levels 10. Reduction in customer complaints 11. To decide about the standard of quality of a product that is easily acceptable to the customer 12. To check the variation during manufacturing 13. To prevent the poor quality product reaching to customerAnjuman-I-Islam’s, Kalsekar Technical Campus
Quality Characteristics Quality of Design Quality of Conformance  Quality of Performance Availability Customer Service
Quality by Design (QbD) It is a concept first outlined by well-known qual ity expert Joseph M. Juran who believed that q uality could be planned, and that most quality c rises and problems relate to the way in which q uality was planned in the first place. Quality by / of Design Anjuman-I-Islam’s, Kalsekar Technical Campus
 Quality Aspects during Design  Aim to satisfy all needs of the Customer  Aware about Customer’s need  Manufacturability and Aesthetics  Ambiguity prohibited during production Quality by / of Design Anjuman-I-Islam’s, Kalsekar Technical Campus
1. Establish the project design targets and goals. 2. Define the market and customers that will be targeted. 3. Discover the market, customers, and societal needs. 4. Develop the features of the new design that will meet the ne eds. 5. Develop or redevelop the processes to produce the features. 6. Develop process controls to be able to transfer the new desi gns to operations. The Quality by Design model consists of the following steps Anjuman-I-Islam’s, Kalsekar Technical Campus
Quality of conformance is basically meeting the standards defi ned in the design phase after the product is manufactured or w hile the service is delivered. This phase is also concerned about quality is control starting fr om raw material to the finished product. Three broad aspects are covered in this definition, 1. Defect detection 2. Defect root cause analysis 3. Defect prevention. Quality of Conformance Anjuman-I-Islam’s, Kalsekar Technical Campus
Anjuman-I-Islam’s, Kalsekar Technical Campus Factors affecting on QOC  Quality of Design & Specs  Process Selection  Procurement of raw mtl.  Training & Skill of workforce  Motivation and commitment  Quality Culture  Maintenance of an instruments  Customer feedback
Anjuman-I-Islam’s, Kalsekar Technical Campus 1. Cost of Failure a. External i. Customer ii. Supplier b. Internal i. Scrap ii. Rework iii. Manpower 2. Cost of appraisal a. Inspection b. Testing 3. Prevention Cost a. Quality Improvement Planning b. Training c. Preventive Maintenance Quality Cost / Cost of Quality

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Introduction to Quality Engineering / Quality Control

  • 1. Anjuman-I-Islam’s, Kalsekar Technical Campus PROF AFAQAHMED QUALITY CONTROL
  • 2. Quality control Quality control is a management system for initiati ng and coordinating: – Quality development, quality maintenance and qu ality improvement in the various departments of d esign and manufacturing, for achieving the twin o bjectives of: 1. Economical production 2. Customer satisfaction Anjuman-I-Islam’s, Kalsekar Technical Campus
  • 3. Definition ASQC – Quality means the totality of features and chara cteristics of a product or service that bear on its ability t o satisfy given needs Quality is Fitness for USE (Juran) Quality is conformance to requirement (CORSBY) The efficient production of the quality that the market ex pects (DEMING) From customer’s perspective, quality of a good or servic e is fitness for use of it Customer satisfaction for the price of the productAnjuman-I-Islam’s, Kalsekar Technical Campus
  • 4. Quality Dimensions of Product Quality  Performance (will the product do the intended job?)  Reliability (how often the product fails?)  Durability (how long the product lasts?)  Serviceability (how easy is to repair the product?)  Aesthetics  Features (what does the product do?)  Perceived quality (what is the reputation of a company or its products?) Anjuman-I-Islam’s, Kalsekar Technical Campus
  • 5. Objectives / Importance of Q C 1. Improvement of quality 2. Reduction of scrap and rework 3. Efficient use of men and machines 4. Economy in use of materials 5. Removing production bottle-necks 6. Decreased inspection costs 7. Reduction in cost per unit 8. Scientific evaluation of quality and production 9. Quality caution at all levels 10. Reduction in customer complaints 11. To decide about the standard of quality of a product that is easily acceptable to the customer 12. To check the variation during manufacturing 13. To prevent the poor quality product reaching to customerAnjuman-I-Islam’s, Kalsekar Technical Campus
  • 6. Quality Characteristics Quality of Design Quality of Conformance  Quality of Performance Availability Customer Service
  • 7. Quality by Design (QbD) It is a concept first outlined by well-known qual ity expert Joseph M. Juran who believed that q uality could be planned, and that most quality c rises and problems relate to the way in which q uality was planned in the first place. Quality by / of Design Anjuman-I-Islam’s, Kalsekar Technical Campus
  • 8.  Quality Aspects during Design  Aim to satisfy all needs of the Customer  Aware about Customer’s need  Manufacturability and Aesthetics  Ambiguity prohibited during production Quality by / of Design Anjuman-I-Islam’s, Kalsekar Technical Campus
  • 9. 1. Establish the project design targets and goals. 2. Define the market and customers that will be targeted. 3. Discover the market, customers, and societal needs. 4. Develop the features of the new design that will meet the ne eds. 5. Develop or redevelop the processes to produce the features. 6. Develop process controls to be able to transfer the new desi gns to operations. The Quality by Design model consists of the following steps Anjuman-I-Islam’s, Kalsekar Technical Campus
  • 10. Quality of conformance is basically meeting the standards defi ned in the design phase after the product is manufactured or w hile the service is delivered. This phase is also concerned about quality is control starting fr om raw material to the finished product. Three broad aspects are covered in this definition, 1. Defect detection 2. Defect root cause analysis 3. Defect prevention. Quality of Conformance Anjuman-I-Islam’s, Kalsekar Technical Campus
  • 11. Anjuman-I-Islam’s, Kalsekar Technical Campus Factors affecting on QOC  Quality of Design & Specs  Process Selection  Procurement of raw mtl.  Training & Skill of workforce  Motivation and commitment  Quality Culture  Maintenance of an instruments  Customer feedback
  • 12. Anjuman-I-Islam’s, Kalsekar Technical Campus 1. Cost of Failure a. External i. Customer ii. Supplier b. Internal i. Scrap ii. Rework iii. Manpower 2. Cost of appraisal a. Inspection b. Testing 3. Prevention Cost a. Quality Improvement Planning b. Training c. Preventive Maintenance Quality Cost / Cost of Quality