Figure 2shows a cross sectional profile of the sheared edge of an aluminum blank note the burnished depth fractured depth burrs microcracks and other edge conditions.
Burnish sharp metal edge copper sheet.
I usually use a pair of snips to cut 10 mil.
Step 1 place the metal on a rubber block to stabilize the piece and leave the edge exposed or place it securely in a ring clamp.
Examination of the edge surfaces of cut sheet metal will display differences between the burnish region and the fracture region.
For lack of better tools i had to use an angle grinder with a steel cutting blade and used a piece of angle iron to cut against to keep the cut straight.
The blanked edge condition can be improved by adjusting the punch and die clearance tolerance shaving the area of the defected blanked edge designing an appropriate contact profile of the tool and die and understanding the mechanical properties of the sheet metal used.
You can also use a pair of scissors or a utility knife but the edges are very sharp so you will want to be careful.
The sheared edge exhibits some distinctive characteristics.
Burnished finish is a type of finish applied on copper usually after fabrication of planters and other items.
The burnish zone is straight and has a smooth surface while the fracture zone is angled and has a rough surface.
Sheet metal taking the sharp edge off i just cut some 16 gauge sheet metal today for shelves on my welder cart and was wondering what is the best easiest way to make the cut edge not so sharp.
This means this is not a step that will produce the exact same results every time.
In manufacturing practice sharp tools can mitigate burrs.
The compact design of the beveltools concepts introduces unprecedented flexibility in rounding metal pipes and sheets.
Here are photos of some of my work using 10 mil copper sheets.
I have created metal atcs and metal collage cards with 10 mil copper sheet.
The sharp edges can be smoothed and softened using simple tools such as sandpaper and metal files which can be found at hardware or home stores.
Heat is applied to copper is order to generate the random discoloration of the metal.
The beveltools beveling machines are ergonomic making it easy to get them to the metal.
As a result rounding small openings from a diameter of 5 8 16 mm becomes child s play.
Step 1 secure the sheet metal to prevent slipping.
This process will round the edge of the metal and create a groove in the point.
They include fractures burnishing rollover burrs and work hardening in the adjacent area see figure 1.
It always looks different but always great.
Step 3 repeat.
R ub transferring is a great way to add a texture or an image to the tooling metal.
Step 2 use your die grinder with a mounted point we like shape w222 and simply run the point over the edge of the sheet metal.
