Forming Sheet Metal Bowl

I made it at techshop.

Forming sheet metal bowl.

So on my way home from britishv8 2009 i stopped by weldone for a second visit and james kindly gave me a quick lesson in metal shaping. By doing so the sheet can be bent or stretched into a variety of complex shapes. Hydraulic die forming is somewhat similar to masonite die forming. This is a process video i made for a metal making assignment at university.

In both sheet metal is sunk or pressed into a die. The applied force stresses the metal beyond its yield strength causing the material to plastically deform but not to fail. T dollies can be used to form flanges and edges by hammering with hammer or slapper the metal over a rounded dolly. The desired shape is achieved through plastic deformation without undergoing any machining like milling.

Www techshop ws i just took my first class at techshop entitled organic sheet metal safety and basic use. If you used a metal hammer like a ball peen hammer the bowl would be quite bumpy and rough. The entire process took a day to make and i used brasso metal polish to finish it off. Sheet metal forming processes are those in which force is applied to a piece of sheet metal to modify its geometry rather than remove any material.

You probably don t give a shit. Hammerforming and planishing are two of the most important and fundamental techniques of custom sheet metal fabrication. James has built whole cars from scratch. In most cases a certain amount of elastic deformation leads to springback which occurs after forming is complete.

To smooth it out you will have to planish the copper bowl on a smooth forming tool. Add strength and rigidity to your project s sheet metal parts as deep as 27 from a panels edge. In it i created this aluminum dome or bowl from a square of about 20 ga sheet aluminum. Eastwood elite 27 bead roller.

Now you ve cut out a copper disk and created a rough bowl form. You can use specialized metal forming stakes that cost a couple hundred bucks. Special price 319 97. Hydraulic die forming is quicker and lends itself more to duplicating formed art or other production.

The sheet metal takes the form of the design cut into the die. Add strength and rigidity to your project s sheet metal parts as deep as 27 from a panels edge.