cOMPUTER Aided Manaufacturing (CAM).pptx

it will discuss CAM which can be used or applied on textiles and apparel sectores

1. 9.Technology shaping the Future of Fashion Industry - Design To Merchandising The fashion sector is also one of the largest industries in the global economy with the $2.2T Today, fashion technology is growing at a faster pace than ever: From robots that sew and cut fabric, to AI algorithms that predict style trends, to VR mirrors in dressing rooms, technology is automating, personalizing, and speeding up every aspect of fashion. 1 05/06/2024

2. Mulat A ABTEW (PhD) 2 05/06/2024

3. Next session Computer Aided Manufacture (CAM) (store design, lay planning, spreading, cutting, sewing, finishing and pressing technologies) Electronic Point-of-Sale (EPOS) (Fashion forecasting, sales transactions and stock levels monitoring). Computer Aided Administration (CAA) (Marketing, distribution and retailing, sales order processing and stock control) Computer Aided Engineering (CAE): (computer software for engineering Apparel Machineries, Abaqus, Solid Work, etc.) 3 05/06/2024

4. 10. Computer Aided Manufacture (CAM) Uses computer software to control machine tools and machinery in the manufacturing process. It is the software code behind the machines that manufacture the products. Also, assist in all operations of a manufacturing plant: Planning, Management Transportation and storage . Its primary purpose includes: Create a faster production process and components Tooling with more precise dimensions and material consistency (uses only the required amount of raw material (thus minimizing waste) and reducing energy consumption). 4 05/06/2024

5. CNC machine Eléments of a CNC Sytem Input Device Machine Control Unit Machine Tools Driving System Feedback System Display Unit Working principles of a CNC Sytem 5 05/06/2024

6. Fabric spreading Main operation in garment industry Unwinding large fabric rolls onto long, wide tables in for cutting each piece of garment During Spreading – Alignement of plies, Elimination of fabric defects/flaws, Correct ply direction, Correct ply tension and Make fabrics flat and, crinkle & crease free Different Fabric spreading 6 05/06/2024

7. Manual Spreading Machines Operating Procedure : Same as Manual Spreader Movement along the table and fabric Pulling can be controlled by buttons Advantages : Easy to operate Low investment Suitable for small scale garment industries Limitations: Speed limitation Skilled labor required to operate Chances of improper selvedge alignment Small roll size 7 05/06/2024

8. Semi-Automatic Spreading Machines Operating Procedure : Same as Manual Spreader Movement along the table and fabric pulling can be controlled by buttons Advantages : Fast and economical Proper selvedge alignment Ease to operate with electronic clutch Limitations: Fabric roll loading, cutting is still manual Not suitable for large scale manufacturing houses Small roll size 8 05/06/2024

9. Fully Automatic Spreading Machines Automatic loading/unloading device for fabric rolls Automatic roll turning arrangement for face to back lay Automatic leveling device for fabric edge alignment. Automatic cutting device at the end of a run Automatic tensioning device to control fabric tension Automatic lay height sensing elevator Programmable lay length, ply height and step-laying Spreading seeds up to 140 m/min 9 05/06/2024

10. Fabric cutting machine Manual Cutting ( scissors, cutters) Semi-Automatic (Round knife cutter, straight knife, band knife) Automatic (CNC, Laser, Plasma, water-jet ) 10 05/06/2024

11. Advantages of CNC fabric cutting machine Most accurate fabric cutting Flexible enough for penetration and movements of knife Create a vaccum to hold the fabric firmly and reduce the hieght of the lay Ideal for notch making with the required depth CNC fabric cutting machine Component of CNC fabric cutting machine Bristle bed Vaccum system Pre- sealer ( Polyethylene sheets ) Perforated paper Automatic sharpening of Blades CNC programming 11 05/06/2024

12. Sewing machine Two types of sewing machines (Based on operating system) Manually operated sewing machines :  Driven by physical energy.  Used for domestic and tailoring purposes.  Less production, but more laborious.  Low cost. Electrically operated or Industrial sewing machines (Semi-automatic electrical or Computerized sewing machines):  Usually driven by electric power.  High productivity.  Used in garments industry.  Cost is high. 12 05/06/2024

13. Computerized sewing machines Used for very fast and accurate sewing. Very expensive and require very efficient operator, Some examples of mostly used computerized sewing machines are: Computer Controlled Cycle Machine with large Sewing Area. Cylinder Bed Machine with Automatic threads Trimming. 1-Needle, lock stitch unison feed machine with double capacity. 1-Needle, lock stitch portable machine with Automatic thread Trimmer. 2-Needle, 2/3/4 thread over lock sewing machine with built-in rolled hemming and differential feed. Automatic Jeans pocket setter with new automatic bobbin winder/changer. 3-Needle, plain feed double loop seam machine with Tractor type presser foot. High speed, lockstitch, buttonhole machine. 13 05/06/2024