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barrel tumbling

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Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001310
EISBN: 978-1-62708-170-2
.... This article focuses on mechanical finishing methods, namely, barrel tumbling, polishing, buffing, vibratory finishing, fiber brushing, and shot blasting. It provides useful information on process control and difficulties with chemical and anodic treatments of magnesium alloys. The use and applications...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001234
EISBN: 978-1-62708-170-2
... Absolutely no part-on-part contact, one part per machine or compartment, part fixturing Table 1 Advantages and disadvantages of mass finishing processes Process Advantage Disadvantage Industry standard Tumble barrel Low initial cost Low operating cost for supplies Very low...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001268
EISBN: 978-1-62708-170-2
...-speed tumbling barrels. Because the entire process takes place at low (1 to 2) pH, the barrels must be lined with an inert, abrasion-resistant protective coating such as neoprene, polypropylene, polybutylene, or urethane. The lining is usually applied at a thickness of 19 to 25 mm (0.75 to 1 in...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001277
EISBN: 978-1-62708-170-2
... conventional air atomized, airless, and electrostatic spray; roller coating; dip coating; flow coating; curtain coating; tumble coating; electrocoating; and powder coating. Surface preparation methods and prepaint treatments for coating systems are also discussed. The article includes information on quality...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001308
EISBN: 978-1-62708-170-2
... coating of aluminum. These include abrasive blast cleaning, barrel finishing, polishing, buffing, satin finishing, chemical cleaning, chemical brightening, electrolytic brightening, chemical etching, alkaline etching, acid etching, chemical conversion coating, electroplating, immersion plating...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... various techniques to improve functional surface properties and enhance the appearance of product forms. The article discusses various cleaning and finishing techniques such as abrasive blast cleaning, polishing and buffing, barrel burnishing, chemical cleaning, pickling, etching and bright dipping...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001315
EISBN: 978-1-62708-170-2
...); speeds ranging from 1080 to 1200 m/min (3500 to 4000 ft/min) often are used ( Ref 5 , 6 ). Tumbling in barrels loaded with abrasive media such as limestone, preformed and fused alumina, ceramic shapes, or abrasive-loaded plastic chips can be used to remove parting line burrs. A lubricant such as soap...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001228
EISBN: 978-1-62708-170-2
... for painting Iron grit G80 Wheel, barrel 15 … … 10 min Air, table (a) … 6 1 4 40 min Gray iron exhaust manifolds, bearing caps Clean for machining Malleable iron shot S460 Wheel, tumble (b) 80 … … 1500 pieces/h Gray iron motor blocks and heads Remove sand and...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003214
EISBN: 978-1-62708-199-3
... were difficult to buff. Now electropolishing is used for polishing stainless steel sheets and parts. Additional information on electropolishing can be found in the Section “Metallography” in this Handbook. The rotary barrel, or tumbling barrel, utilizes the sliding movement of an upper layer of...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003216
EISBN: 978-1-62708-199-3
... stainless steel variable-speed tumbling barrels. Because the entire process takes place at low (1 to 2) pH, the barrels must be lined with an inert, abrasion-resistant protective coating such as neoprene, polypropylene, polybutylene, or urethane. The lining is usually applied at a thickness of 19 to 25 mm...
Book Chapter

By A. Sato
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001248
EISBN: 978-1-62708-170-2
... still or rack plating. Barrel zinc plating is a complex phenomenon in which a large mass of parts is constantly tumbled in the plating cylinder at varying distances from the cathode contact surfaces. At any given time, a part may have an infinitesimally low current density or it may even be deplating...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001227
EISBN: 978-1-62708-170-2
... rotated in a solution of acid salt cleaner (similar to the composition shown in Table 1 ) at room temperature using a concentration of 45 to 60 g/L (6 to 8 oz/gal). After tumbling for 10 to 20 min, the barrel was removed from the cleaner tank, drained, rinsed, drained, and tumbled for 30 to 60 min at...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003997
EISBN: 978-1-62708-185-6
... sawing are not removed, defects are likely to develop in the forging. Deburring of the saw sections by grinding, radiusing, or barrel tumbling is always recommended. Optimal forging temperature ranges for ten alloys are given in Table 2 . Atmosphere protection during billet heating is not required for...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003213
EISBN: 978-1-62708-199-3
..., dry, or dip in rust preventative Solvent wipe Vapor degrease Phosphoric acid etch Solvent wipe Emulsion dip or spray, rinse Vapor degrease Alkaline spray Solvent wipe Emulsion soak, barrel rinse, electrolytic alkaline rinse, hydrochloric acid dip, rinse Continuous high production Automatic...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001255
EISBN: 978-1-62708-170-2
... be burnished in tumbling barrels to give a uniform bright finish. Cosmetic cases are frequently plated with an 85Cu-15Zn alloy to impart a golden appearance; the alloy can be applied as a flash plate or as a heavier plate that is subsequently burnished. Builders hardware plated with a 90Cu-10Zn alloy...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001309
EISBN: 978-1-62708-170-2
... mineral spirits RT RT 5 (b) Mill lubricant RT, room temperature. (a) Hand cleaning necessary with fragile parts. (b) Tumbled in barrel Table 10 Offhand belt polishing and wheel buffing operations for sand cast red brass parts Sand cast lavatory fittings made of red brass are...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001306
EISBN: 978-1-62708-170-2
... parts. Wet tumbling is not suitable for deburring P/M parts because of the difficulty of removing the tumbling liquid from the pores of the parts. During self-tumbling, the workpieces are tumbled in a revolving barrel. This method provides an economical and efficient means of deburring, but is...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001307
EISBN: 978-1-62708-170-2
... in the Section “Finishing Methods” in this Volume. Wet tumbling by the barrel or vibratory method can be used to descale heat-resistant alloys if the shape and size of the parts are suitable. The removal of burrs and sharp edges is accomplished in the same operation. Shop soils are also removed...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001247
EISBN: 978-1-62708-170-2
... used. Selection of plating method involves both technical and economic factors. Still plating, with parts racked, is the oldest and most universally used plating method. Barrel plating, limited to smaller parts that can be tumbled in the plating bath, is popular because many parts...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003987
EISBN: 978-1-62708-185-6
... manufacture is: Coin disks are blanked from sheet of prescribed thickness and surface finish. The disks are annealed and barrel tumbled to deburr, to develop a suitable surface finish, and to control weight. The disks are edge rolled into a planchet. The planchets are fed, one at a time, to the...