Lobster Back Bend Sheet Metal

On light gauge sheet metal you could bend by hand after rolling.

Lobster back bend sheet metal. These can be light sheet metal or manufactured from thick plate. Generally a template is produced from an orthographic drawing when small quantities are required larger quantities may justify the use of press tools and the template will include allowances for bending and seams bearing in mind the thickness of material used. One type of industrial component i have been involved with the design and manufacture of is lobster back bends. How to develop a pattern for a lobster back bend using parallel line development.

Duct size remains constant between inlet and outlet. Many articles such as cans pipes elbows boxes ducting hoppers etc. As with all standard lobster back bends the start and finish segments are basically a normal segment cut in half. Calculation flat pattern used as a template for cutting the pipe producing with wall thickness s 0.

With all segments connected final bend will have everything line up properly. Calculator will calculate the necessary dimensions for the construction flat pattern segments lobsterback bend elbow tee piece frustum cone and truncated pipe truncated cone with an accessible vertex and triangulation method. Technical description lobster provides a multi gored bend between two ducts. The lobster software module is for the development of tapered segmental bends commonly known as lobster back bends in sheet and plate.

From 2 to 10 gores permitted. We start off by modeling sheet metal cylinder diameter same as required duct diameter. On heavy plate we bump all the segments together. This type of duct bend is made up of segments cut from flat sheets or plates rolled into cylindrical parts then assembled.

Are manufactured from thin sheet materials.