業界初心者向け | オーエスジー

Showing 1-10 of 24 results

answer
What does div> 2D, 3D, 4D, and 5D mean?

D stands for tool diameter.

It is expressed as several times the depth and length of the tool diameter, and is expressed as ○○D.

In drills and end mills, it is expressed as many times as the outer diameter of the tool, and in Tap , it is expressed as several times as the outer diameter of the thre

No : 697
Published : Modified : 2024/08/28 02:29
answer

There are various units that express the properties of metal materials, and it is important to check their numerical values before processing metal materials.
It is also important to select a cutting tool that matches the hardness of the workpiece material.
Among steel materials, the units of materials to be processed by taps and drills include HRC, which represents the hardness of relati

No : 8328
Published : Modified : 2024/08/28 02:29
answer

Accuracy class of screws

The grade of the screw is generally determined in the drawing at the time of design of the threaded product.

In order to meet the thread accuracy of the drawing instructions, it must pass the inspection with the thread gauge.

The approximate application is shown in the table, but please check the drawing instructions for

No : 12583
Published : 2022/07/01 16:35 Modified : 2024/08/28 02:29
answer
Tolerance indications on the drawing must clearly represent all dimensions, shapes, positional relationships, etc. If there is no tolerance specified in the drawing, you can use the normal tolerance as a basis.
example
・Length and dimensions
Outer dimensions, inner dimensions, step dimensions, diameters, radius, spacing, roundness and chamfer di
No : 9674
Published : 2021/10/04 11:12 Modified : 2024/08/28 02:29
answer

Thread terminology external thread and internal thread Outer diameter Inner diameter Pitch Thread angle

The part shaped like Mt. Fuji is the "screw mountain".

The thread is " external thread " on the outside and " internal thread " on the i

No : 9484
Published : 2021/07/05 13:52 Modified : 2024/08/28 02:29
answer

In order for the external thread and internal thread to fit together, the following must be met:

internal thread is greater than external thread

・ There is a gap between ★ external thread and

No : 9476
Published : 2021/07/05 13:24 Modified : 2024/08/28 02:29
answer

What is the effective diameter of external thread , internal thread ?

What is the effective diameter of external thread ?

Effective diameter: The diameter of an imaginary cylinder such that the width of the thread (B) is equal to the width of the threa

No : 9473
Published : 2021/07/05 13:15 Modified : 2024/08/28 02:29
answer
How to represent the size of a metric thread
A: Screw Type = Metric
B: Outer diameter = 10mm
C: Pitch = 1.5mm
No : 9467
Published : 2021/07/01 17:31 Modified : 2024/08/28 02:29
answer
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 is a parallel thread, such as a metric thread (M) or a unified thread (U).
A screw that has an angle to the central axis of the screw at an angle to the line connecting the peaks of adjacent screws is ca
No : 8489
Published : 2021/01/13 10:22 Modified : 2021/01/13 10:22
answer

The "tolerance" is the difference between the maximum and minimum values of a given dimension.

"Tolerance" is the difference between the limit value allowed for the reference dimension.

The larger one is referred to as the "upper tolerance" and the smaller one is referred to as the "lower tolerance" relative to the reference dimension

No : 7801
Published : 2020/08/24 10:24 Modified : 2024/08/28 02:29

Searching in progress