This document discusses powder bed fusion, which is an additive manufacturing technique where a laser, heat or electron beam is used to melt and fuse powdered material together to form a 3D object. It begins with an introduction to manufacturing and additive manufacturing. It then defines powder bed fusion and notes its classification and process. The key advantages are wide material choice, powder recycling, low cost and design complexity. Disadvantages include slow speed, high power usage and potential for thermal distortion. In conclusion, powder bed fusion allows for production of heat-resistant components while optimizing weight and reducing lead times.

1. POWDER BED FUSION
NAME:P.HARISH REDDY
CLASS:3RD YEAR MNT
ROLL.NO:16SS1A2943

2. CONTENTS
1. Introduction
2. What is additive manufacturing(AM) ?
 classification of AM
3. What is powder bed fusion ?
Classification
Process
Advantages and disadvantages
4. Conclusion

3. INTRODUCTION
Manufacturing is a process in which raw materials
are transformed into finished goods.
Some of the processes are :
 Casting
 Moulding
 Forming
 Machining/SM
 Additive manufacturing

4. What is AM ?
 The process of joining materials to make objects from three
dimensional model data , usually layer by layer
 AM uses an additive process
 Classification of AM
 Material jetting
 Binder jetting
 Material extrusion
 Powder bed fusion
 Sheet lamination
 Directed energy deposition
 VAT Photopolymerization

5. What is powder bed fusion ?
It is one of seven AM techniques , in which either
laser , heat or electron beam is used to melt and fuse
the material together to form a 3D object.

6. PROCESS

8. .
ADVANTAGES DISADVANTAGES
Wide material choice
Powder recycling
No or minimum support
Low cost
Design complexity
Low wastage
Relatively slow process
Post-Processing
High power usage
Thermal distortion

9. CONCLUSION
By this process we can produce critical components
and component subjected to high temperatures ,
optimize the weight and reduces the lead time .