Incremental Sheet Metal Forming Process

It introduces the use of metallic or polymeric sheet for small batches production in an economic way without the need of expensive or dedicated tools.

Incremental sheet metal forming process.

This reduces tool costs and the time required to achieve the first finished part. Fig 5 basic elements of isf. Negative forming or spif single point incremental. As a result the incremental sheet forming isf technology is a new possibility to decrease the cost problem in small volume production.

Incremental sheet metal forming is a forming process for manufacturing complex components in small quantities. Isf contains for basic types of elements which is forming tool sheet metal blank holder and cnc machine as shown in fig 5. Incremental sheet metal forming. Through isf a sheet is formed into the final workpiece through a progression of small incremental and localized deformations.

Building on previous and current work this research utilizes single point incremental forming spif and dual sided incremental forming dsif to produce mass customized double curved both positive and negative gaussian curvature three dimensional forms from sheet metal. Incremental sheet metal forming ismf has demonstrated its great potential to form complex three dimensional parts without using component specific tools against the conventional stamping operation. Incremental sheet forming isf process emerges as an alternative to classic shaping processes. Other micro sheet metal forming processes include 1 incremental or die less forming forming.

These forms are produced at a scale which suggests their use as cladding elements in a building envelope. Incremental sheet forming isf is an umbrella term for a few variations of a sheet metal forming technique. In comparison to conventional drawing methods complex tools can be dispensed. The sheet is generally formed by a spherically ended indenter which can be attached to a cnc machine and moved over a custom designed numerically controlled tool path.

Two variants of the isf process are used.