SURFACE HARDENING FOR DRILL PIPE LIFE IMPROVEMENT
نویسندگان
چکیده
منابع مشابه
Research on Three-point Centering Device of Cylindrical Drill Pipe
In the process of tightening up and screwing off the iron roughneck, it is required that the center of clamping pliers and the center of drill pipe are coincident, so as to avoid the damage of the circular guide in clamping system, and to ensure the iron roughneck work normally. While the traditional method of centering is artificial in iron roughneck, its precision is low, so it is easy to dam...
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15 صفحه اولCalibration of Hardening Rules for Cyclic Plasticity
In the realm of multi-axial ratcheting, a step by step mathematical approach is developed for the parameter determination of decomposed kinematic hardening rules. For this purpose, key characteristics are mathematically derived for these hardening rules under multi-axial loading. These characteristics are then utilized to develop expressions which relate the loading history to the accumulated p...
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ژورنال
عنوان ژورنال: Oil and Gas Business
سال: 2014
ISSN: 1813-503X
DOI: 10.17122/ogbus-2014-4-381-399