With the 2015 upgrades to the ISO9001 and 14001 standards, and the 2016 alignment of the automotive standard TS16949 (now designated as IATF16949).
Rapid prototyping at H T Brigham adds value for customers
The benefits of 3D printing have been widely reported; fast, low-cost and kind to the environment. This rapid prototyping allows working concepts to be ruled in or out more quickly, speeding up the development process and reducing the project lead time as a whole.
The process of deep drawing a component begins with the sheet metal, in the form of coil strip or lengths, being fed into the press either automatically or manually. Part of the press tool called a die, is used to cut a piece out of the material into the required outline. This outline is called a blank, which is then formed into the deep drawn component shape following a series of stages.
When the punch of the drawing tool forces a portion of the blank through the bore of the die, different forces come into action to cause a somewhat complicated flow of the material. The material is bent and wrapped around the punch nose, whilst the outer portion of the blank simultaneously moves radially towards the centre of the blank.
The volume elements decrease in circumferential length and correspondingly increase in radial length until they reach the bore of the draw ring. After becoming part of the shell wall, the elements are straight.
This results in the formation of a deep drawn cup shaped component. The volume and the thickness of the metal remain essentially constant throughout the process, with the final shape of the cup being consistent with the contour of the drawing punch.
If the desired size of the deep drawn metal pressing cannot be achieved after the first reduction, the component can be taken through a number of further reduction stages to achieve the size required.
Most types of material can be deep drawn from a flat blank into a cup shape. However, due to the level of stress which the material is subjected to during this process, some types of material which are less malleable, may require an annealing operation before being taken through any further reductions after the initial stages.