Product Design (Modern Manufacturing Systems) Overview of Modern Manufacturing Systems 3.0 / 5 based on 1 rating ? Design & TechnologyAS Created by: Luke BissetCreated on: 09-04-12 14:54 Quick Response Manufacturing - Allows manufacturers to make to order - They only manufacture what they can sell - So no expensive storage costs of finished cars - No risk of not being able to sell the cars - Can respond to a sudden change in demand - QRM systems reduce waiting times 1 of 11 Electronic Point of Sale – EPOS - This uses laser scanned bar code at the point of sale - The scanned product is then registered with distributors, suppliers, warehouses etc. - They can then order stock from manufacturers - EPOS allows products to be manufactured Just In Time – JIT - Bar codes are also used to trace the product during manufacture 2 of 11 Just in Time – JIT - Customers get products at the right time - No stockpile of raw materials or components - No expensive storage costs - So customer orders “pull” the production - It also allows variations to take place on assembly lines - Supplies must be at the right place at the right time - Suppliers may be fined if schedules are not met 3 of 11 Kanbans - Stock levels are managed using computers - Boxes of components are bar coded to identify part identity & quantity - A kanban (card) in the box has the same informaotin - As the parts are used up the kanbans are collected - The kanbans are scanned & using Electronic Data Interchange – EDI parts can be re-ordered from suppliers automatically 4 of 11 Flexible Manufacturing Systems In constant, mass markets – making toothpaste tubes/aerosol cans – manufacturers will dedicate automated equipment to making one product. - In other markets items are made in smaller batches, equipment needs to be flexible The following can be made to be flexible – Press formers CNC lathes CNC punches CNC milling machines CNC laser cutters Robot arms 5 of 11 Press Formers - It is possible to change the dies on press machines so different products can be made - More than one model car can be made on the same assembly line - At Jaguar the X-type Jaguar and the X-type saloon can be made on the same line 6 of 11 CNC Punches - These can be programmed to punch a variety of holes of different sizes, shapes and patterns on sheet metal. 7 of 11 CNC Laser Cutters & Flame Cutters - Laser cutters & flame cutters can be programmed to cut out a wide variety of holes, slots & profile shapes. - As different model JCB’s are made new programs are quickly down loaded to enable manufacture. 8 of 11 CNC Lathes & Milling Machines - Lathes & Milling machines can be used to produce accurate one off or batch products - Lathes are used to cut/shape round bars & cut screw threads - Millers are used to cut slots, grooves, pockets, drill holes & cut profiles - Re-programming such machines has been made relatively easy 9 of 11 Robot Arms Robot arms can be programmed to do - - The same job repeatedly on one product - The same job repeatedly on different products - Entirely different jobs Robot arms can have different tools to do - Spot welding - Applying adhesives - Lifting components - Spray painting 10 of 11 Robot Arms FMS Cells - Robot FMS cells can be organised into cells - A host computer controls sequencing - Jobs take different times so parts are held in a buffer store - Several different programs can run simultaneously 11 of 11
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