Laminated object manufacturing

It is a rapid prototyping technique

1. LAMINATED OBJECT MANUFACTURING SUBMITTED TO: Pr. Praveen Singh SUBMITTED BY : ANKIT RAGHUWANSHI MECHANICAL A 3 rd YEAR ENR. NO. 0901ME131015 MADHAV INSTITUTE OF TECHNOLOGY AND SCIENCE GWALIOR

2. WHAT IS LAMINATED OBJECT MANUFACTURING? 1.It is type of solid rapid prototyping used to create low cost 3D model using lasers

3. LOM EQUIPMENT AND PROCESS

4. The laminated objects manufacturing Hybrid process which involves adding and subtracting material to create a part Feed spindle supplies the material and a Take-up spindle controls the excess. Layers the material with thickness ranges from 0.001 – 0.005 inches Each layer is cut with a CO2 laser

5. MATERIALS The most common materials used in LOM are t hermoplastics such as PVC; Paper (.002-.02inch); Composites (Ferrous metals; Non-ferrous metals; Ceramics)

6. Material is usually a paper sheet laminated with adhesive on one side, but plastic and metal laminates are appearing. 1. Layer fabrication starts with sheet being adhered to substrate with the heated roller. 2. The laser then traces out the outline of the layer. 3. Non-part areas are cross-hatched to facilitate removal of waste material. 4. Once the laser cutting is complete, the platform moves down and out of the way so that fresh sheet material can be rolled into position. 5. Once new material is in position, the platform moves back up to one layer below its previous position. 6. The process can now be repeated. Basic Process

7. Process

8. What gets made? LOM is used primarily for creating scaled models and conceptual prototypes that can be tested for form or design. It can also be used to make patterns for use in traditional manufacturing, such as sand molded casting, a metal casting process and for Investment casting patterns ,direct use

9. OBJECT MADE BY LOM

10. LOM layers of plastic or paper are fused or laminated together using heat and pressure and then cut into the desired shape using computer . 3 D PRINTING USING LOM

11. LOM at home Printers use this technology to generate 3d image

12. Ability to produce larger-scaled models Uses very inexpensive paper Fast and accurate Good handling strength Environmentally friendly Not health threatening Precision claimed to be ± 0.005 in. Variety of material can be used such as paper , plastics , composites and ceramics

13. DISADVANTAGES Paper is cheap but is not very stable. Need decubing which requires a lot of labour Produce smoke or fumes Fire hazard Not ideal for making complex geometries . It is not used to create functional prototypes.