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 Normal Tolerance? (General To...

Tolerance indications on a drawing must clearly represent all dimensions, shapes, positional relationships, and other relevant features. If no specific tole... 詳細表示

What is an end mill shank?

It refers to the so-called straight shank of the end mill. The aim is to improve runout accuracy and high grasping power. The shank diameter is... 詳細表示

What is the cutting load and cutting ...

The rotational resistance in tapping is called the cutting torque of the tap. Factors affecting torque are related to the shape of the tap, such as th... 詳細表示

Relationship between Tapping Efficien...

Machining efficiency is expressed in terms of the feed rate (Vf, mm/min). The feed rate for tapping is calculated using the formula: Vf = pitch × n (where ... 詳細表示

Chip shape during tapping

If the chips are thin and short, they can be considered to have a good shape that is easy to discharge. If the chips are thick and long, there is a risk tha... 詳細表示

Coarse screw thread and Fine screw th...

Coarse screw thread and Fine screw thread refers to the type of pitch of the thread. Coarse screw thread most commonly used threads. It is often omitted bec... 詳細表示

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

A thread parallel to the central axis is defined as the line connecting the crests of adjacent threads. This type of thread is called a parallel thread, suc... 詳細表示

What is HRC, a unit of hardness?

There are various units that express the properties of metals, and it is important to check their values before processing. It is also important to select a... 詳細表示

What is effective thread length?

The effective thread length is the length of the thread. Excluding the incomplete threaded part, it is the length of the part including the chamfer. 詳細表示