Finishing Mills, Separators Offer Easy, Efficient Operation
FABTECH 2020: Sweco's Round Separator and Finishing Mill are designed to provide efficient finishing processes.
Sweco’s round separator and finishing mill are both designed for efficient finishing processes. The vibro-energy round separator can separate solids from liquids or segregate dry materials into various sizes. Particles as fine as 400 mesh (37 microns) can be screened, with up to four screen decks incorporated in one separator. For the additive manufacturing industry, the round separator is used to collect, screen and rebottle reclaimed metal powder from 3D metal printers.
The Vibro-Energy Finishing Mill utilizes less energy per cubic foot of capacity and is less prone to drive failures, according to the company. The three-dimensional vibro-energy motion subjects parts and media to a consistent high-frequency tilting movement as they travel in a helical/orbital path around the chamber. The resulting compressive scrubbing action cleans and also removes burrs, round sharp corners, and smooths out surface impressions. The vertical/horizontal amplitudes and rate of vibration are adjustable, enabling finishing requirements to be handled quickly and efficiently.
Surface finish types for commercially supplied stainless steel sheet are detailed in various standards. ASTM A480-12 and EN10088-2 are two; BS 1449-2 (1983) is still available, although no longer active. These standards are very similar in that they define eight grades of surface finish for stainless steel. Grade 7 is “buff polished,” while the highest polish—the so-called mirror polish—is designated Grade 8
When choosing vibratory media, understand the size, shape, starting roughness condition and metallurgical structure of the part.
The correct peripheral speed is an important consideration in getting the right results from your buffing operation. A buff that is turning too fast or too slow may result in damage to the buff or to the workpiece.