Some charts actually measured the resulting inside radius and found the correct bend deduction. (0.81mm) bend radius by virtue of the punch tip's radii.' Using this criteria, the creator approximated the punch radius rather than measured the In other words, each chart creator must have said something like, 'This is the value of a 1/32-in. This leads to the question, Which chart is correct? The answer is, All of them! They all are correct for the environment in which they were created.

For example, a part with three bends could have as much error as 0.117 in. Top and bottom values can make a good part a bad one quickly. However, if tight tolerancing or if multiple bends are involved, the difference between the Assuming that you have a generous tolerance over one bend, the error in bend deduction can be spread out, and a good part still can be produced. The total error, or amount of difference between the top and the bottom entries, was 0.039 in. Figure 1 shows data from five of those charts selected at random. Please refer to our Tube Bending Chart below for further information.In reviewing a couple dozen bend deduction charts from a variety of sources, I couldn't find any that agreed with another, with the exception of a single number here and there. This ensures that the hot exhaust gases can maintain their velocity and efficiency once attached to the vehicle. Our up to date equipment allows us to bend the tube without compromising or wrinkling the tube during the process whilst offering the best consistency and weight at all times. This also allows up to maintain quality and maintain stock availability. In order to offer you the very best service, we have a large range of mandrel tooling which allows us to produce your exact requirements in house. Metals available include Stainless Steel 304 and 321, Aluminium, Titanium Grade 2, Titanium Asnex, Inconel 625 and 718.īoth Titanium and Inconel are formed from flat sheet metal and are expertly rolled and seam welded to a high standard. With the latest technology and equipment Alunox Advanced Tube Engineering are in the ideal position to be able to offer the flexibility and range of materials to meet your individual requirements including bespoke designs.

Tube bending chart