Home » Archive by categoryMechanical Engineering

The Metallurgical Crystal Structure of Titanium

Like a number of other metals – e.g. Ca, Fe, Co, Zr, Sn, Ce, and Hf – titanium can crystallize in various crystal structures. However, each modification is only stable within particular temperature ranges. The complete transformation from one into another crystal structure is called allotropic transformation; the...
Continue reading

Google warns 760,000 websites to update their security

Google is informing website operators and administrator to sign up for its security notifications after a study of 760,935 hijacked websites revealed the difficulties in cleaning up infections/viruses that expose visitors to malware. Google announced its findings in a study that was conducted with the University of California,...
Continue reading

Self-driving car completed its journey across China

A self-driving (Driver less) car built by Chongqing Changan Automobile Co, Ford’s Chinese partner, has successfully completed 1,200 miles (nearly 1950 kilometers) of drive across China according to report. In a statement to the Shenzen stock exchange, the company revealed that the car had traveled from Chongqing in...
Continue reading

Job Fairs in April (Full Schedule)

  In order to enhance grater employment in the country, the government of China is helping to host more than 20 job fairs in April creating a free and open platform for employers to meet with potential applicants. At the City Career Service Center, there will be 11...
Continue reading

Fundamentals of Heat Transfer (What is it?)

Heat transfer is the flow of thermal energy driven by thermal non – equilibrium (i.e. the effect of a non – uniform temperature field), commonly measured as a heat flux (vector), i.e. the heat flow per unit time (and usually unit normal area) at a control surface. The...
Continue reading

Why Heat and Mass Transfer?

Heat transfer and mass transfer are kinetic processes that may occur and be studied separately or jointly. Studying them apart is simpler, but both processes are modelled by similar mathematical equations in the case of diffusion and convection (there is no mass – transfer similarity to heat radiation),...
Continue reading

Analysis of Chip Formation

The first step in a consideration of the mechanics of chip formation is to identify correctly the type of chip involved (steady state, BUE, discontinuous, wavy, or sawtooth). If, at the outset of a metal cutting analysis, an incorrect chip type is assumed, the results obtained may be...
Continue reading

Follow on Facebook

Advertisement

Follow us on Wechat

Show buttons
Hide Buttons