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08-12-2015, 11:48 AM
DEPARTMENT OF COMMERCE
Scientific Papers OF THE Bureau of Standards
S. W. STRATTON. Director
No. 343
October 1919
https://books.google.com/books?id=XEieFp3c1LEC&pg=PA225&dq=winchester+rifle+barrel+steel&hl=en&sa=X&ved=0CFsQ6AEwCWoVChMImZiDgvCjxwIVjxaSCh07dw-7#v=onepage&q=winchester%20rifle%20barrel%20steel&f=false
One of the practical applications of magnetic analysis consists of the detection of flaws in bar stock used in the manufacture of steel products. At the request of the Ordnance Department of the Army and the Winchester Repeating Arms Co., an investigation was undertaken during the war with the end in view of applying this method of magnetic analysis to the testing of rifle-barrel steel.
In view of the fact that flaws, generally consisting of pipes or slag inclusions, interfere with the drilling of the barrels or may possibly affect their strength, it was considered that a nondestructive test which would detect and. locate such flaws before further work had been done on the barrels would prove to be of great value. Such a method of inspection would make possible not only the rejection of faulty material, but also the acceptance of all the satisfactory bars in a given shipment and thus effect a great saving both of material and labor. It is the object of this paper to describe the apparatus used in the investigation and to present the results thus far obtained.
Scientific Papers OF THE Bureau of Standards
S. W. STRATTON. Director
No. 343
October 1919
https://books.google.com/books?id=XEieFp3c1LEC&pg=PA225&dq=winchester+rifle+barrel+steel&hl=en&sa=X&ved=0CFsQ6AEwCWoVChMImZiDgvCjxwIVjxaSCh07dw-7#v=onepage&q=winchester%20rifle%20barrel%20steel&f=false
One of the practical applications of magnetic analysis consists of the detection of flaws in bar stock used in the manufacture of steel products. At the request of the Ordnance Department of the Army and the Winchester Repeating Arms Co., an investigation was undertaken during the war with the end in view of applying this method of magnetic analysis to the testing of rifle-barrel steel.
In view of the fact that flaws, generally consisting of pipes or slag inclusions, interfere with the drilling of the barrels or may possibly affect their strength, it was considered that a nondestructive test which would detect and. locate such flaws before further work had been done on the barrels would prove to be of great value. Such a method of inspection would make possible not only the rejection of faulty material, but also the acceptance of all the satisfactory bars in a given shipment and thus effect a great saving both of material and labor. It is the object of this paper to describe the apparatus used in the investigation and to present the results thus far obtained.