This excerpt is taken from a documentary film on the construction of Martin Pasi’s Opus 14, It shows the pouring and preparation of metal for casting an organ pipe. This segment was filmed by Mike Cousino in the Pasi Organ Builders shop in Roy, Washington. Part 1 of 6.
Duration : 0:5:3
Which process is more economical, casting or forging or sheet metal fabrication, without considering initial and tooling costs?
It depends on the application, the shape of the item being made and the number being make.
Also to not include initial and tooling costs is unfair since an item that can be fabricated by welding has fewer tooling costs and is good for one time items.
Lecture Series on Manufacturing Processes – I by Dr.D.B.Karunakar, Department of Mechanical and Industrial Engineering, IIT Roorkee. For more details on NPTEL visit http://nptel.iitm.ac.in
Duration : 0:53:2
Lecture Series on Manufacturing Processes – I by Dr.D.B.Karunakar, Department of Mechanical and Industrial Engineering, IIT Roorkee. For more details on NPTEL visit http://nptel.iitm.ac.in
Duration : 0:54:33
This simulation was performed at Alloy Casting Industries in New Hamburg, Ontario Canada.
An observation of thermal flow channel evolution during the delivery of molten metal to the mold cavity.
Duration : 0:0:20
Making a small casting in aluminium. A core is used to make the intenal detail of the casting. This is the gearbox for my Stickney engine model. There are some slight differences in technique from my other videos, I am learning all the time!
Duration : 0:9:43
metal casting at home. everything is very low tech. used camera that did not have sound. reached temperatures of at least 1500 degrees Fahrenheit. made from digging hole, putting coals in and pumping oxygen into the hole (vacuum)
Duration : 0:1:8
i casted a metal keychain, and sandpapered it but now there is loads of lines due to the sandpaper, how can i get rid of them?
thanx.
only way to get rid of sandpaper scratches is polishing them out – which is a slow and elbow grease demanding process. You will need sandpaper with progressively finer grit, e.g. if you started out with 100 you’d use 200, 400, 1000. After 1000 you’ll need polishing compound for metal, one or two different ones, depending on how much mirror polish you want.
The alternative is to go with a satin look and use a wirebrush and make so many scratches that the individual ones aren’t noticeable and it looks intentional.
A simulation comparing the assigned feeder parameters per Table 2. design 16 of the paper entitled “Tapered Riser Design Optimization” by Creese/ Xia
Plate casting moduls = 2 in. (plate thickness/2)
Plate casting volume = 1024 in3
Cylindrical feeder volume = 679 in3
Tapered feeder volume = 525 in3
The simulations were performed using an 18Cr-8Ni stainless steel in resin bonded sand molds.
I have run several simulations using the design parameters per table 2 (all with stainless steel) and have found that in all situations the tapered top feeder performed inadequately.
Duration : 0:0:41
After building the furnace and drying the refractory, Its now time to melt some metal.
Duration : 0:1:0