Accession Number : AD0724998

Title :   Study of the Friction Process during Vibration Cutting of Refractory Alloys,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Poduraev,V. N. ; Valikov,V. I.

Report Date : 12 FEB 1971

Pagination or Media Count : 11

Abstract : The article describes investigations of friction under conditions approximating friction along the front and rear edges of a tool during vibrational cutting (drilling), and based on study of the magnitude of normal pressure on the study of the friction pair (VK8 hard tool alloy and Kh18N9T stainless steel), and on the magnitude of the cutting speed. For the study, special equipment was designed and added to a modified lathe. This equipment and the set-up used to produce intermittent vibrational cutting are described briefly. Two sets of relationships were derived, the first for friction in castor oil and sulphafrezol and in dry friction at low feed pressures and friction in sulphafrezol and in dry friction at higher rates and pressures. The experiment data indicate that the character of the relationships for dry friction and friction in sulphafrezol coincide. It was determined that vibrational cutting produced lower friction coefficients than steady cutting; however, an increase in the torsion moment with time was noted. This is explained as being due to increasing friction on the rear surfaces of the drill. (Author)

Descriptors :   (*CUTTING, VIBRATION), HEAT RESISTANT ALLOYS, HEAT RESISTANT METALS, CUTTING TOOLS, FRICTION, CUTTING FLUIDS, STAINLESS STEEL, DRILLING, USSR

Subject Categories : Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE