SU910366A1

SU910366A1 - Method of working stainless and high-temperature steels by chip breaking

Info

Publication number: SU910366A1
Application number: SU802895682A
Authority: SU
Inventors: Николай Григорьевич Ткачик; Маркиян Васильевич Медвидь; Борис Георгиевич Озеров
Original assignee: Предприятие П/Я М-5514; Предприятие П/Я В-8751
Priority date: 1980-03-18
Filing date: 1980-03-18
Publication date: 1982-03-07

Description

II

Изобретение относитс к области Обработки металлов резанием, в частности к обработке нержавеющих и жаропрочных сталей, и может найти применение при изготовлении деталей из прутковых заготовок на токарных автоматах .The invention relates to the field of metal cutting, in particular to the processing of stainless and heat-resistant steels, and may find application in the manufacture of parts from bar blanks on automatic lathes.

Известен способ обработки, согласно которому на заготовке в виде прутка нанос т стружкоразделительные канавки. Дл этого на пути подаваемого в резцовую головку прутка диаметрально устанавливают прорезные резцы с возможностью их регулировани в радиальном направлении. Глубина тружкоразделительных канавок должна быть несколько меньше величины припуска, подлежащего сн тию резцовой головкой Li .There is a known method of treatment, according to which chip separation grooves are applied in the form of a rod on a blank. To this end, slotted cutters are diametrically mounted in the path of the rod fed to the cutting head with the possibility of their adjustment in the radial direction. The depth of the dividing grooves should be somewhat less than the value of the allowance to be removed by the Li cutting head.

Недостатками известного способа вл ютс сложность настройки и эксплуатации резцов, предназначенных дл нарезани стружкоразделительныхThe disadvantages of this method are the difficulty of setting up and operating the cutters for cutting chip separating

канавок, а также возможность по влени вибраций в результате прерывистого точени с равномерным расположением стружкоразделительных канавок по окружности обрабатываемой заготовки . По вление вибраций отрицательно сказываетс на точности обработки и стойкости инструмента особенно при обработке нержавеющих и жаропрочных сталей.grooves, as well as the possibility of vibration as a result of intermittent turning with a uniform arrangement of chip separation grooves around the circumference of the workpiece. The appearance of vibrations adversely affects the machining accuracy and tool life, especially when machining stainless and heat resistant steels.

10ten

Цель изобретени - повышение эффективности стружкодроблени и устранение вибраций при обработке.The purpose of the invention is to increase the efficiency of chip breaking and eliminate vibrations during processing.

Дл этого на подлежащие обработке For this to be processed

s прутки нанос т слой смазки с абразивными включени ми в виде зерен, размеры которых меньше припуска под последующую обработку на величину, пропорциональную коэффициенту ударной s rods apply a layer of grease with abrasive inclusions in the form of grains whose dimensions are smaller than the allowance for subsequent processing by an amount proportional to the impact coefficient

Claims

20, the rod material has the viscosity, and this rod is drawn by the Zethem to form scuffs of various depths that are unevenly arranged around the circumference. The described method is implemented as follows. A lubricant, such as engine oil, with impurities of abrasive inclusions in the form of grains is applied to the surface of the bar to be treated. Then the rod is drawn, for example, through a partially worn filter. In this case, scuffs are formed on the surface of the rod, unevenly distributed around the circumference of the rod and having different depths. During subsequent machining, these scuffs play the role of chip separation grooves. The grain size must be less than the value of the allowance for processing. Non-uniformity of the location of the scuffing of the bar's surface reduces the possibility of vibration vibration during machining. - so that, in order to increase the efficiency of chip breaking and eliminate vibrations during processing, on the rod being processed | and preliminarily, a layer of lubricant with abrasive 1U1I inclusions in the form of grains, the size of matures, less shallow. around the circumference. Sources of information taken into account in the examination 1. USSR author's certificate Vf, KL. В 23 В 1/00, 1970.