NORWOOD — An “ultrasonic can opener” for opening steel-encased unexploded bombs without generating excessive heat is being studied by engineers at its commercial apparatus and systems division plant in Norwood, the Raytheon Co. announced this week.
The engineers are experimenting with what is called a “silent sound” tool under a contract from the U.S. Navy’s Bureau of Weapons.
Ultrasonic impact grinders are now widely used in industry to cut hard and brittle materials. A tooltip, moving up and down 25,000 times a second, drives an abrasive liquid against the work to be cut. Although the tool itself never touches the work, the tiny particles in the liquid cut the work to an accuracy of two 10,000ths of an inch.
Fri, Dec 2, 1960 – The Berkshire Eagle (Pittsfield, Massachusetts)
This Day in Norwood History-May 30, 1950-Ponder Question Of Land For School Purposes
The School Committee and the Planning Board following two conferences on the matter of location of possible school sites, visited the are in the vicinity of the corner of Dean…
This Day In Norwood History-May 30, 1922-Ora Holman, 91, Helped Hunt Down John Wilkes Booth
May 30, 1922-Ora Holman, 183 Walpole st, is the oldest Civil War veteran, having passed his 91st birthday. He enlisted in the 2d New Hampshire Cavalry, and is a member…
This Day in Norwood History-May 30, 1903-Woman’s Club Petions For Use of High School Assembly Room
RATHER FAVORS IT. Public Opinion Is Inclined to, Take Sides With the Woman’s Club In An Important Petition. An interesting hearing, involving some equally interesting questions of public policy, was…
This Day in Norwood History-May 30, 1957-Thrills Promised By Christiani Brothers’ Circus At Elks’ Field
Corky Cristiani Corky Cristiani, 21, and pretty famous equestrienne with the Cristiani Bros. Circus like nearly all on the list of performers, has inherited her strength and skill, and daring.…