Hardness of metal materialsHardness is one of the important indicators for measuring the mechanical properties of metal materials, which measures their ability to resist external forces such as indentation or scratching. Hardness testing is the fastest, most economical, and simplest test method for

Tapping is the process of using a tap to cut internal threads into the hole of a workpiece.picture(1) The factors that determine the performance of the tap include:Workpiece materialcutting speed Cutting edge materialhiltTap formThe size of the holeThreaded knife handlecutting fluidKong Shen(2) Pitc

Quenching and tempering treatment usually refers to the quenching of steel and subsequent high-temperature tempering, which is a common process in steel heat treatment. The purpose is to improve the mechanical properties of metals through appropriate heat treatment processes, so that they have good

When it comes to forging, designers are no strangers. Some students say that only large-sized parts (such as when suitable specifications of bars are not available in the market), or complex shaped parts (such as when all machining is too wasteful of material), will they think of forging. In fact, w