TABLE OF CONTENTS Several unique designs exist for vibratory applications. Some of these have already been described, but this section looks at others. As in all deburring, each machine has its own best application and no one machine fills all needs.
One company produces a vibratory machine that combines shot blasting with the rolling action of normal vibratory operations. This equipment reportedly accelerates the deflashing of die castings. The machine looks like a conventional vibratory bowl, but has many blasting nozzles around the exterior. As an example of one use in the 1970s, a company vibratory-finished golf balls to provide a smooth finish and remove flash. After blasting they were painted (Poll 1978; Stauffer 1979). With this latest design they could be finished in one operation.
A recent innovation is a vibratory finishing bowl with blasting heads around the periphery [3]. The vibratory motion moves the parts without fixturing under the blasting heads. At the same time it provides some conventional vibratory scrubbing or deburring, but the manufacturer notes that most of the finishing actually occurs from the blasting nozzles. Blasting machines sold in the 1960s had a similar arrangement, and, like the latest design, the primary deburring or deflashing was performed by the blasting as opposed to the tumbling (Fig. 10-41).
In 1978 one manufacturer introduced a machine that claimed to...
