公开(公告)号：US20230219856A1

公开(公告)日：2023-07-13

申请号：US17706045

申请日：2022-03-28

Applicant: SHANDONG UNIVERSITY ,  YANSHAN UNIVERSITY

Inventor： Chuanzhen HUANG ,  Yan ZHANG ,  Hanlian LIU ,  Zhenyu SHI ,  Peng YAO ,  Zhen WANG ,  Longhua XU ,  Shuiquan HUANG ,  Jun WANG ,  Hongtao ZHU ,  Bin ZOU

IPC: C04B35/58 ,  C04B35/626 ,  C04B35/645 ,  B23B27/14

CPC classification number: C04B35/58 ,  C04B35/6261 ,  C04B35/6264 ,  C04B35/645 ,  B23B27/148 ,  C04B2235/3856 ,  C04B2235/3886 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/6581 ,  C04B2235/6562 ,  C04B2235/6567 ,  B23B2226/18

Abstract: The present invention relates to the field of new materials technology, in particular to carbon nitride composite ceramic tool materials, preparation method and cutting tools thereof. The raw materials comprise carbon nitride, titanium carbonitride, molybdenum, nickel and cobalt, carbon nitride as the matrix phase, titanium carbonitride as the reinforcing phase are added to the carbon nitride based composite ceramic materials, with molybdenum, nickel and cobalt as a suitable sintering aid, dense composite tool material is obtained with vacuum hot press sintering method. The prepared carbon nitride based composite ceramic tool materials boast the advantages of low cost, high hardness, high bending strength and high fracture toughness, which is an important way to promote the innovation, development and popularization of carbon nitride materials.

公开(公告)号：US20220373444A1

公开(公告)日：2022-11-24

申请号：US17619092

申请日：2021-01-21

Applicant: SHANDONG UNIVERSITY

Inventor： Chuanzhen HUANG ,  Zhengyi TANG ,  Hanlian LIU ,  Hongtao ZHU ,  Bin ZOU ,  Peng YAO ,  Jun WANG

IPC: G01N3/24

Abstract: A method and system for calculating a primary shear zone stored energy field during steady-state cutting, the method including: fitting parameters of a workpiece material stored energy evolution model; discretizing the primary shear zone into infinitesimals on a main shear plane. The infinitesimals are small enough, a strain, strain rate, and temperature are assumed constant; introducing an equivalent cutting edge model simplifying three-dimensional cutting into two-dimensional cutting, calculating element strain and strain rate using a shear plane model, and analyzing element temperature using a heat conduction equation; deriving a differential equation of stored energy versus location in the primary shear zone using stored energy evolution, strain rate distribution, strain distribution, and temperature distribution models; and solving the differential equation for each infinitesimal using an initial shear plane as a model boundary, obtaining stored energy at each location to obtain a stored energy field distribution of the primary shear zone.