Everything is not perfect

Everything is not perfect, roughness measuring instrument also has some disadvantages. For example, the equipment is more complex, requires a relatively high cost of inputs, the sensor components (induction loop) poor interchangeability and adaptability, not in some complex shape of the workpiece applications.
Although there are some shortcomings, but it's comprehensive index is good, obvious advantages outweighed the disadvantages. Therefore, induction heating is a major process of metal machining. Is to replace coal heating, ideal for heating the oil heating, gas heating and electric heating, electric oven heating, etc.