More Related Content
What's hot (20)
Similar to Quality control and inspection presentation (20)
Recently uploaded (6)
Quality control and inspection presentation
- 1. Quality Control and Inspection Presentation by Nyamuronda Marshal, Mungwariri Hope, Bapiro Collen, Mangombe Munyaradzi, Chemene Takunda
- 2. What is Quality Control? This may be defined as measures put in place in order to ensure that the product meets the customer expectations Those planned and systematic actions which provides a mean to control and measure the characteristics of a product, process or a service to established requirements Quality control monitors not only the product itself, but the way it is produced, stored and transported
- 3. Why is quality control important? The manufacturing process is a repetitive process depending on both controllable and non controllable factors resulting in the deviation of the quality of the product. Quality control is the vital process for verification or correction of the quality of the product whenever the deviations are found to be more than expected.
- 4. Types of Quality Control Internal quality control - When a company institutes protocol to check their system, this is called internal quality control. This can range from routine checking of equipment, having a co-worker go over another employee's data analysis, or running standards and controls on a regular basis. It is generally up to management to decide if internal quality control measures are reliable and performed as needed External Quality Control This is when data or products are sent to an independent body from the company e.g sending food to the Food and Drug administration. Proficiency Testing Quality Control - A special type of quality control often done on a volunteer basis or to gain accreditation is proficiency testing. In this type of quality control, the company is sent a series of tests to perform. The results are sent back and the company receives a grade on its proficiency. This type of testing is often done in laboratories, where sensitive equipment and complex protocols need to be verified as accurate before the lab is allowed to continue its work.
- 5. What is Quality Inspection? The ISO standard defined inspection as the activity of measuring, examining, testing one or more characteristics of the product/service and comparing the results with the specified requirements in order to establish whether conformity is achieved for each characteristic. This task is usually performed by specialized personnel and does not fall within the responsibility of production workers. Products that do not comply within the specifications are rejected or returned for improvement.
- 7. Forms of Quality Inspection Final Article inspection This ensures that all design, Engineering, and specification requirements are understood, accounted for and verified. It takes place right after the manufacturer starts producing the first mass production samples Incoming inspection - Gives the idea on which kind of raw materials (or components) are to be used. Factories are often suspected of lowering their costs by purchasing substandard materials, and this can be disastrous for the company(e.g. the wrong kind of chip in an electronic device). During production - allows the buyer to have an idea of average product quality, early in the production cycle. It usually takes place once some finished products have come out of the lines. If quality issues are found, what is already produced might be re-workable, and corrective actions can be taken for the rest of the job. Final Inspection - It takes place once 100% of shipment quantity is finished and at least 80% is packed, so it can be a real random inspection. Container loading inspection- This is done to ensure that the right kind of products are shipped out in the right quantity, when the importer places no trust in his supplier or when several suppliers bring their products for consolidation. Go and no go inspection -
- 8. Elements of inspection Intepretation of quality requirements Sampling Examination Decision and action
- 9. Quality Inspection tools These are tools used by inspectors to ensure that all the products manufactured by the company are within the limits designated by the designers/producers. Examples of such tools include ; Air gages(inside and outside diameter, to look for leaks) Bore gages (to measure dimensions) Calipers (slide movement Color sensors (determine the proper color mixture of clothing or textile) Biological Microscopes(to study organisms and their vital processes) Electron Microscopes (to produce smaller scale images of the product) 3-D scanners
- 10. Quality Inspection planning A quality control plan is a document that provides instructions on how an inspection of a product is to take place. Inspection plans provide details about what characteristics must be tested in order to ensure the quality of the product, as well as specific metrics and measurements that must be achieved in order for the product to be judged in compliance with standards.
- 11. Types of Inspection Plans Plan Type Used to Collect Data and Report On Receiving Items received at the warehouse Resource Equipment or machinery in Shop Floor Inventory Items in your inventory Work in Process Work order execution
- 12. Inspection plans (contd Inspection Plan Type Inspection Criteria Receiving inspection plans Suppliers and supplier locations for the document type: Purchase order Source organization for document types: In-transit shipment, Return material authorization, and Transfer order Inventory inspection plans Subinventory and locators Work in Process inspection plans Operation Code or Operation Sequence or both along with the Dispatch Status