Tumble Deutsch Beispiele aus dem Internet (nicht von der PONS Redaktion geprüft)
das Durcheinander kein Pl. der Purzelbaum Pl.: die Purzelbäume. tumble dryer (auch: drier) auch: tumble-dryer (auch: drier). der Wäschetrockner Pl.: die Wäschetrockner - Maschine. der Tumbler Pl.: die Tumbler.
Englisch-Deutsch-Übersetzungen für to tumble im Online-Wörterbuch jalaprt.co (Deutschwörterbuch). Übersetzung für 'tumble' im kostenlosen Englisch-Deutsch Wörterbuch und viele weitere Deutsch-Übersetzungen. Übersetzung Englisch-Deutsch für tumble im PONS Online-Wörterbuch nachschlagen! Gratis Vokabeltrainer, Verbtabellen, Aussprachefunktion.
Likewise, dishes and decorative glass jars filled with tumbled stones often including common rocks not suitable even for costume jewelry were frequently used as household ornaments.
Metal tumbling is used to burnish , deburr, clean, radius, de-flash, descale, remove rust, polish, brighten, surface harden , prepare parts for further finishing, and break off die cast runners.
Variations of this process usually include media, water, or other lubricants. As the barrel is rotated the material rises until gravity causes the uppermost layer to landslide down to the other side.
The barrel may also have vanes, typically made of rubber, which run along the inside of the barrel. In a wet processes a compound, lubricant, or barreling soap is added to aid the finishing process, prevent rusting, and to clean parts.
A wide variety of media is available to achieve the desired finished product. Common media materials include: sand, granite chips, slag , steel, ceramics, and synthetics.
Moreover, these materials are available in a wide variety of shapes. Usually different shapes are used in the same load to reach into every geometry of the part.
Tumbling is an economical finishing process because large batches of parts can be run with little or no supervision by the operator.
The disadvantages of this process are that the abrasive action cannot be limited to only certain areas of the part, cycle times are long, and the process is noisy.
Barrel burnishing is a type of barreling where no cutting action is desired. The goal is to reduce minute irregularities and produce a clean, smooth surface.
The parts are usually tumbled against themselves or with steel balls, shot, rounded-end pins, or ballcones to achieve this.
It is also usually a wet process that uses water and a lubricant or cleaning agent, such as soap or cream of tartar. The barrel is not loaded more than half full and if media is used then a ratio of media to parts is maintained to keep the parts from rubbing.
Centrifugal barrel tumbling uses a tumbling barrel at the end of a rotating arm to add centrifugal forces to the barreling process.
This can accelerate the process 25 to 50 times. Spindle finishing mounts the workpieces onto spindles that rotate the parts opposite that of the media flow.
This prevents the parts from interacting with each other and accelerates the cycle time, but extra time and cost are required to fixture the workpieces.
Stained glass shards used for mosaic glass are also tumbled. No abrasive is used, to avoid clouding the glass; there is only water as a lubricant.
The object of this tumbling is to remove the sharp edges from the glass, so that it may be handled safely. As little as 8 hours of tumbling may be sufficient for tumbled glass.
Tumbling is used to polish and smooth dice for recreational use, but it has the unfortunate effect of making their sides and faces somewhat uneven and thus making the dice less than fair.
These techniques, although they take a long time, involve very little operator intervention and thus are very cheap.
At the other end of the scale, professionals can use very large barrels to do a lot of work at once.
The main disadvantage of tumbling is its limited scope - stones will be smooth and have semi-random shapes like pebbles from the beach , and metals need to be relatively simple shapes, with no fine work.
From Wikipedia, the free encyclopedia. See also: Mass finishing. Retrieved 31 October Archived from the original on Retrieved Categories : Handicrafts Industrial processes Metalworking Hardstone carving.
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