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By Anu Mary Yohannan
TWO PHASES OF OPERATIONSCONTROL of an operation in process-
STATISTICALINSPECTION control of Raw Materials, Semi-
finished products, and Finished products
TECHNIQUES FOR QUALITY CONTROL
Method of Measuring and Continuously Improving Work Process before the final inspection of the product
It is Preventive & RemedialBased on THEORY OF SAMPLING-analysis of
few items out of total populationConsiderations-Setting Tolerance Limit of
acceptable quality & measuring the Product Quality
Useful in Automated Operations & Production of Product in large volumes
STATISTICAL QUALITY CONTROL (SQC)
1. TOLERANCE LIMITVariation in quality from the Standard Specifications which can be acceptableBased on past Data or Statistical formula
2.MEASUREMENT OF QUALITYTo avoid producing items beyond Tolerance Limit & avoid further LossesControl Charts are preparedBENEFITS-Reduction in Inspection cost, Greater efficiency in quality control, Early detection of faults & Adherence specifications
Applied at the stage of Raw Materials, Semi-finished products, and Finished products
Done by Quality Control Manager by comparing the quality of product to the STANDARD or SPECIFICATION by Visual or Testing Examination
When & How-Cost of Inspection & Quality
Sampling & Sample Size depends on Degree of Precision required
INSPECTION CONTROL
Comprehensive Quality Control is the Effort of an Organization to Develop, Design, Manufacture, Inspect, Market & Service products that will Satisfy the Customers at the time of Purchase and give them Satisfaction for a long time after purchase
IDEA OF QCWestern countries-by Quality Control Dept.(results not satisfactory)Japanese system of Management integrated Quality
Control with Manufacturing Dept.
QUALITY CONTROL THROUGH QUALITY CIRCLE(QC)
QC is a group of employees that meets regularly to solve problems affecting its work area(6-12 volunteers)
Receive training in problem solving, statistical quality control & group process
Control activities, Self-Development and mutual development & Control and Improvement within workplace utilizing QC techniques with all the members participating
Get solutions for quality & productivity problems-Implementation
CONCEPT OF QC
An approach to bring Participation & TeamworkPhilosophy & Methodology-Provides opportunity to
realize & satisfy peoples needs at the work placeMotivates people to contribute towards
organisational effectiveness through group processes
It is not only applicable to manufacturing organizations but to banking, insurance, finance,…
Respect humanity & build a happy workplace worthwhile to work
Display human capabilities fully & eventually draw out infinite possibilities
OBJECTIVES OF QC
1.START-UP PHASE convincing people about the utility of change. Publicize the concept of QC in organization Make people understand the implications of QC Initial training to personnel required2.CONSTITUTION OF QC Members of QC are from same work area or doing
similar type of work & are drawn voluntarily Involves Steering Committee, Facilitator &
Coordinator Steering Committee –apex body & advisory body Facilitator –Manager of shop responsible for guiding
& directing activities Coordinator- coordinate activities on behalf of
management & make operation smooth, effective & self-sustained
DEVELOPING QC
3.INITIAL PROBLEM SOLVING
Data collection, Data Analysis, Problem solving
Data collection –past records, contacting employees & self suggestions
Data Analysis –establish basic reason for a particular problem
Problem solving –analyzing suggestions & taking final decisions through consensus
Relevant groups may be assigned activities depending on nature of suggestion
Once this process is over, QCs may be organized for entire organization
• 4.PRESENTATION AND APPROVAL OF SUGGESTIONS
Oral presentation by members,preparation of project report, or group assignments in project presentation
Presentation to management improve communication between management & workers
Fosters good working relationship among all peopleOpportunity to recognise QC members efforts
5.IMPLEMENTATION OF SUGGESTIONS
1. Absence of right type of attitude among managers & workers (Counselling about the real concept)
2. Low profile of workers (Proper training)3. Delay in implementation of suggestions
(Management should take effective step)4. Non-members of QCs pose problems
(Making them witness QC activities-presentation of solution)
5. Operational problems like members not permitted to hold meetings during office time(Adequate support from top management)
PITFALLS IN QC & REMEDIES
THANK YOU