gundog
Hot Rolled
- Joined
- May 31, 2004
- Location
- Southwest Washington USA
I plan to make a vacuum fixture for this part (see picture)I need a vacuum source either a pump or a venturi type source. Cycle times I expect to be around 5 minutes or less. I will probably make 20 to 50 at a time. Right now I have a fixture made that uses some corner shop made clamps allowing me to drill and tap the holes in the interior,I add hold down screws through those drilled holes and cut the profile. I would like to put the blank on held by vacuum and do the whole part to get the cycle time down.
I use vacuum on a router table but it is a high CFM low pressure system that allows a lot of air leakage. This fixture I plan to be a high hold down pressure no leakage or very low leakage system. Of course I want to get by as cheap as possible. I plan to machine the fixture specifically for this part. I have a couple Harvey "O" ring cutters and some "O" ring material. The part is cut from a 19.5" x 11.75" X .250" 5052 AL blank it has plenty of surface area for vacuum the part is bent after machining.
I have been looking on my local CL for a vacuum pump but I don't really know what type I need other than it needs to be continuous duty. I am not sure which type are designed for continuous duty. I have heard the venturi type vacuum source use a lot of air.
Would this work? GAST Vacuum Pump DOA-V720-AA Oil-less Diaphragm Pump Air Compressor with Vacuum | eBay
I use vacuum on a router table but it is a high CFM low pressure system that allows a lot of air leakage. This fixture I plan to be a high hold down pressure no leakage or very low leakage system. Of course I want to get by as cheap as possible. I plan to machine the fixture specifically for this part. I have a couple Harvey "O" ring cutters and some "O" ring material. The part is cut from a 19.5" x 11.75" X .250" 5052 AL blank it has plenty of surface area for vacuum the part is bent after machining.
I have been looking on my local CL for a vacuum pump but I don't really know what type I need other than it needs to be continuous duty. I am not sure which type are designed for continuous duty. I have heard the venturi type vacuum source use a lot of air.
Would this work? GAST Vacuum Pump DOA-V720-AA Oil-less Diaphragm Pump Air Compressor with Vacuum | eBay