Long Workpiece

THREE D METAL – Clamshell Buckets

THREE D METAL is a SE South Carolina fabrication and machine shop of large components for a variety of industries. As a previous user of VSR Technology’s On-Site Service, we were the vendor of choice to stress relieve a pair of Clamshell Bucket Halves, each half weighing 24.5 tons, being manufactured for the steel industry.

Continue Reading >

THREE D METAL – Gerdau Ameristeel

THREE D METAL has employed VSR Technology On-Site Service on two previous projects, involving 250-ton capacity Lifting Yokes and 400-ton capacity Clamshells. In this latest project, performed at GERDAU’s Knoxville, TN mill, a Lower Shell for an electric arc furnace, measuring 30′ L, 20′ W, and 10′ H, was stress relieved in less than 3 hours using the VSR Process. In addition to relieving the weld stresses produced in THREE D METAL’s shop during fabrication, the Job also required stress relieving a full-length field weld, joining the two Furnace Halves.

Continue Reading >

VOITH SULZER

Is a leading manufacturer of large equipment used in the power generation and paper mill industries. The Appleton plant is their U.S manufacturing facility for paper mill equipment. Since 1984, the Appleton plant has relied on a VSR 790 System to perform their stress relief of medium (1/2 Ton) to large (50 Ton), dimensionally critical components.

Continue Reading >

ARGONNE NATIONAL LABORATORY

Is one of several U.S government operated large research facilities. When an ARGONNE program required a multiple number of highly precise titanium workpieces, involving extensive, high-stock removal machining, they specified VSR Technology Group’s VSR-8000 Vibratory Stress Relief System to assure consistent dimensional quality.

Continue Reading >

MORRISON-BERKSHIRE (MB)

Is a manufacturer of large Roll Systems used in the textile industry. These rolls use a dual shell design, with channel welded to the outside of the inner shell. The channel between the shells transfers pumped oil during operation. MB offers the shells in both low-carbon and stainless steel, and manufactures them in sizes up to 6 feet OD, and up to 60 feet long. Both straightness and roundness tolerances are critical, typically ± 0.010″ over the full length.

Continue Reading >

KASGRO RAIL CORPORATION

Is a manufacturer of heavy load, platform railcars. Using VSR TECHNOLOGY’S Vibratory Metal Stabilization Process enables KASGRO to meet target dimensional tolerances, which, prior to effective stress relief with the VSR Process, caused problems during either the assembly or test loading phases of manufacturing.

Continue Reading >

INGERSOLL MACHINE TOOLS INC

A manufacturer of special machine tools, is a regular user of the VSR Process. This report describes the successful use of the VSR System on the Cross-Rail member of a gantry-style milling machine.

Continue Reading >

INGERSOLL MACHINE TOOLS INC

To date, INGERSOLL has produced milling machines capable of machining parts over 100 feet in length. Stress relieving their machines’ components can be a challenge. The VSR process was used to stabilize a 59 foot long milling machine gantry. Stress relieving the workpiece both before and after rough machining (total time < 4-hours) resulted in a dimensional accuracy of 0.0036" over the entire length, and only 0.0018" in the critical center portion of the component where spindle travel occurs.

Continue Reading >