Sheet Metal Duct Fabrication Formulas

Bend angle b the inside angle between the two legs or flanges of a bend.

Sheet metal duct fabrication formulas.

If you need any custom fabricated sheet metal items please see the ordering instructions below. I m at my house in moonridge every weekend and often during the week as well. Bend deduction bd the amount removed from the sum of the two flange lengths to obtain a flat pattern. Jcr metal works.

Kennedale tx 76060 phone 817 478 0801 fax 817 483 6571 page 5 of 43 sheet metal standards duct guage and enforcing for 1 ess drive gauge of metal duct dimensions 5 joint 4 joint 2 5 joint 2 joint joint. Place the compass on point 4 and swing arcs to mark to the right and to the left. Welcome to angels sheet metal inc. Box 739 kennedale tx 76060 physical address 528 s.

The bend deduction formula takes into account the geometries of bending and the properties of your metal to determine the bend deduction. Called sheet metal workers. In fact sheet metal use in hvac is greater than all other materials combined. Bend allowance ba the amount of added to the sum of the two leg lengths to obtain the flat pattern length.

Measure and mark out 5 in 13 mm on the reference line. Suburban sheet metal ltd mailing address p o. Set the compass at 5 in 13 mm 1 12th circumference. Material thickness mt the gauge of the material in decimal form.

C d c 3 14 x 2 in 50 mm 6 2 in 157 mm 1 12th of the circle 6 2 in 157 mm 12 5 in 13 mm 12. Doing business as angels heating air. The steel and aluminum used for ductwork is a high achiever in the 21st century move toward sustainable buildings because of the high recycling rates and cleanliness. We manufacture duct work and sheet metal products for the heating ventilation and the air conditioning industry as well as industrial dust collection and exhaust systems.

Our goal is to provide superior service and high quality products to our customers to enable them to meet their deadlines. In house sheet metal fabrication for large or small projects and everything in between. Big bear lake page. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k.

I m a big bear resident but i also have a sheet metal fabrication facility in chatsworth ca. May 12th 2018 sheet metal layout software hvac formulas excel hvac duct most 2d is a nesting software for sheet metal cutting and heavy fabrication.