Posted by Janicholson on January 19, 2015 at 14:07:38 from (74.60.94.18):
In Reply to: 3D printing posted by David G on January 19, 2015 at 08:56:32:
Companies now make Metal 3D printers. The best of them sprinkle powder .020", sinter the powder with a laser system, then machine the sintered layer. to dimensional correctness and flatness, then do it again. The process is used in Aerospace and extreme technology applications. One cubic inch of deposited material can cost more than $150.00. We have seven 3D printers (None of them metal!!). They print in a variety of plastics including Nylon and ABS. The methods of deposit of the technology is to spread a layer of plastic, then spray glue on it, then repeat and eventually the part is complete and embedded in a loose powder matrix. We then dig them out and dust them. NExt the component is infiltrated with a binder that seals the pores. Several binders can be used. Epoxy, crazy glue, and acrylic are 3. The second process uses liquid polymer and lasers to crosslink the material into a solid. The result is a pretty fair plastic representation. The third is a direct deposit machine that liquifies a "wire" of ABS and extrudes it out in a tight pattern to create the component. The result is still porus and has fair strength, these can also be treated to fill the pores. The 4th type "prints in wax. The wax is then invested in casting plaster and burned out. This allows very precise nearly impossible components to be cast into the resulting molds. The cost of printing with our printers is about $3.00 per cubic inch. The "machines cost from $30,000, to $125,000 each. (The metal printer is way more than that.) We use the printers every day in Engineering and Technology classes and research. Jim
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Old Time Threshing - by Anthony West. A lovely harvest evening late September 1947, I was a school boy, like all school boys I loved harvest time. The golden corn ripens well and early, the stoking, stacking,.... the drawing in with the tractors and trailers and a few buck rakes thrown in, and possibly a heavy horse. It would be a great day for the collies and the terrier dogs, rats and mice would be at the bottom of the stacks so the dogs, would have a busy time hunting and killing, all the corn was gathered and ricked in what we c
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
