Accuracy class of screws

Accuracy class of screws The class of the screw is generally determined in the drawing at the time of design of the threaded product. In order to meet the ... 詳細表示

What is a Cutting Tap?　What is formi...

A cutting tap is a tap that processes internal thread by scraping the workpiece material. straight fluted tap , spiral fluted tap and spiral pointed tap... 詳細表示

What is Normal Tolerance? (General To...

Tolerance indications on the drawing must clearly represent all dimensions, shapes, positional relationships, etc. If there is no tolerance specified in t... 詳細表示

Chip shape during tapping

If the chips are thin and short, it can be said that it is a good shape that is easy to discharge. If the chips are thick and long, there is a risk of them ... 詳細表示

What is internal lubrication? What is...

What is internal lubrication? What is external coolant supply ? Internal lubrication refers to tools such as Tap , drills, end mills, etc. A hole (oil ho... 詳細表示

Tap Relationship between machining e...

Tap Relationship between machining efficiency and cutting conditions Machining efficiency is expressed in terms of feed rate (Vf, mm/min). The formula for ... 詳細表示

What is a parallel thread?　What is a ...

A screw that is parallel to the central axis of the screw is a line connecting the peaks of adjacent screws to the summit of the screw. The type of thread i... 詳細表示

What is HRC, a unit of hardness?

There are various units that express the properties of metal materials, and it is important to check their numerical values before processing metal materials... 詳細表示

What is tap pilot hole management?

The pilot hole is machined with a drill that takes into account the expansion allowance from the standard dimensions of the pilot hole diameter. In the ca... 詳細表示

What is tolerance?　What is a tolerance?

The "tolerance" is the difference between the maximum and minimum values of a given dimension. "Tolerance" is the difference between the limit value allowed... 詳細表示