Fabrication Of Abrasive Belt Grinder Pdf Report Download

ABSTRACT

The Machine we designed and fabricated is used for grinding any shape of object like Circular, Rectangular, and Polygon. In our project the work abrasive belt is used to grinding the material. The abrasive belt is rotated by the single phase induction motor. Hence our project namely abrasive belt grinder is a Special type of Machine. According to the type of material to be grind, the grinding tool can be changed.
This project gives details of grinding various shapes and sizes of components. This machine can be widely applied in almost all type of industries. By varying the pulley sizes I can get a high end speed of over 10,000 rpm if needed. The only change I would make is to have a totally enclosed motor to keep out the grit.

INTRODUCTION

Our project is design and fabrication of Multi Use abrasive belt Grinder. It is used to grind the machining surfaces to super Finish and accuracy. It can be used as an external Grinder by fixing the belt grinder attachment on the conveyor roller. The principle parts of this attachment are main body, motor with pulley, bearings, rope pulley and conveyor abrasive belt etc.

WORKING PRINCIPLE

The abrasive belt is used to grind the material. This abrasive belt is rotated by the single phase induction motor. In our project consist of end bearings with bearing cap, roller wheel, shaft, single phase induction motor and abrasive belt. This whole arrangement is fixed on the frame structure where the component rests.
The roller wheel is mounted on the two end bearings with bearing cap by suitable arrangement. There are two roller wheel is used in our project to rotate the abrasive belt. One side of the roller wheel shaft, one v-pulley is coupled by the suitable arrangement. The single phase induction motor with V-pulley arrangement is used to rotate the abrasive belt through the belt drive mechanism.
Belt grinding is an abrasive machining process used on metals and other materials. It is typically used as a finishing process in industry. A belt, coated in abrasive material, is run over the surface to be processed in order to remove material.

APPLICATIONS

Belt grinding is a versatile process suitable for all kinds of different applications. There are three different applications of the belt grinding technology:
1. Finishing: surface roughness, removal of micro burrs, cosmetic finishes, polishing
2. Deburring: radiusing, burr removal, edge breaking
3. Stock removal: high stock removal, cleaning (e.g. of corrosion), eliminating mill or tool marks, dimensioning

ADVANTAGES:

• The machine is compact and rigid in size.
• Maintenance is less.
• It can be used on any place of small grinding application
• By varying the pulley diameter the speed of the abrasive belt to be changed.

DISADVANTAGES :

• The abrasive belt should be changeable one for different material. This process takes more time.

APPLICATIONS

• Grinding outside the job in any size of body can be done.
• As the feed is given automatic, 0.8 micron finish may be achieved.
• By changing the grades of abrasive belt grinding it can be used to grind the carbon steel, Alloy steel and stainless steel etc.

CONCLUSION

Grinding has traditionally been associated with small rates of material removal and finishing operations. However, grinding can also be used for large-scale metal removal operations similar to milling, shaping, and planing. In creep-feed grinding, the depth of cut d is as much as 6mm, and the workpiece speed is low. The wheels are mostly softer grade resin bonded with open structure to keep temperatures low. Creep-feed grinding can be economical for specific applications, such as grinding cavities, grooves, etc.

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Fabrication Of Abrasive Belt Grinder Pdf Report Download

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