What are the four high velocity forming processes?

Answer 1

High Velocity FormingAs the name itself hints, HVF or high velocity forming refers to a set of techniques which are used for metal

forming. These techniques could include methods such as explosive forming, electromagnetic forming and so

forth. All these techniques involve imparting a high kinetic energy to the work piece by accelerating it to a

highly velocity, before it is made to hit the appropriate die or made to undergo the process of plastic the

formation.

I must also tell you that although this method seems very new, it was discovered more than 100 years ago and

metals were being worked upon using HVF techniques as early as the 1930s. Due to the nature of the

operations it would also be appropriate to name this technique as highly velocity deformation rather than high

velocity formation.

One main advantage of using HVF techniques is that very complex shaped parts can be formed in a single

operation, rather than carrying out a series of operations to achieve the same results via conventional forming

techniques.

A wide variety of operations which are conventionally carried out using traditional methods can be done using

highly velocity techniques, and these processes include those of extrusion, die-forging, punching, joining and

so forth. The list of materials which can be formed using high velocity methods contains a wide variety of

materials including magnesium, aluminium, zirconium, stainless steel, alloys steel etc.

Advantages of HVF

Highly velocity forming techniques have several advantages over conventional forming techniques, apart from

reducing the number of processes required in manufacturing.

The strain distribution is much more uniform in a single operation of HVF as compared to conventional forming

techniques. This results in making it easy to produce complex shapes without inducing unnecessary strains in

the material.

Since the basic principle of a highly velocity formation technique is quite opposite to that of a conventional

forming technique, the tools and other equipment used in the process has quite lightweight compact relatively

speaking.

High velocity techniques can be used to improvise upon various joining methods such as say for example

fusion welding. Impact welding using highly velocity techniques can produce much better results than the

conventional fusion welding techniques