Jun 25, 2014

Posted by in Proposed Solutions, Student Work | 0 Comments

Dematerialization

Dematerialization refers to the absolute or relative reduction in the quantity of materials required to serve economic functions in society. In common terms, dematerialization means doing more with less. Dematerialization is the counter argument to the idea that economics is only about ‘more is better’.

The Bullet Santi is in a dire need of the dematerialization. Right now in all models of the bullet santi the fabricators use L section and U section section steel to build the chassis, and use nuts and bolts at many joints. Which increases its weight considerably, resulting into wastage of energy which could be used on field. So, in order to dematerialize we need to replace the type of metal used in chassis with an efficient fastening method  without compromising its strength.

Instead of the L section and U section mild steel bars we can use tubing for the chassis like bikes and trikes which will provide desired strength and weighs less than usual chassis.

How to select type of tubing for chassis?

Many professionals choose Drawn over Mandrel (DOM) steel tubing for the frame material. As it refers to high strength, electrically welded tubing that has been further processed by cold drawing through dies and over Mandrels to improve its uniformity, mechanical properties and surface finish. The joints in the current chassis are at 90 degree, where we don’t even need it whereas in tube chassis there will be less joints as we can bend the tube as per our need. The structure will be more aerodynamic and instead of fastening by nuts and bolts we can fasten the whole tube chassis with welding.

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What type of welding to be used ?

Of all the welding process available the gas metal arc welding (GMA) and gas tungsten arc (GTA) welding processes are best suited for TUBE WELDING.

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