显示31-40的 45 结果
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
Cutting force is the resistance force that the cutting edge receives during cutting. It is measured by the principal component, the feed force, and the 3-component force of thrust force .
Thrust resistance is a cutting force mainly used in drills, and is the force of resistance applied in the opposite direction to the direction of travel of the tool. It
Thread alignment and detail refers to the type of pitch of the screw.
Parallel and detailed
Parallel most commonly used screws. It is often omitted because only one pitch is specified for the outer diameter.
M10X1.5
Depending on the characteristics (hardness and toughness) of the tool material, various types are used.
Hardness: The harder it is, the less likely it is to wear, but it is easy to break and chipping .
Toughness: The tougher it is, the harder it is to break, and the harder it is to chipping . If it is tough, it is easy
< Basics of Cutting (4) >, we will introduce "metal materials" among the main types of workpiece materials.
"Metal materials" can be roughly divided into "iron and steel" and "non-ferrous metals".
"Non-ferrous metals" include aluminum alloys and copper.
"Steel" is a general term for metal materials with iron as the main component.
If you look at t
There are various materials (= materials, workpiece materials) in the world, but they are classified according to the nature of the workpiece material.
Workpieces are broadly classified into " metallic materials " and " non-metallic materials ".
Typical examples of "non-metallic materials" include wood, paper, and plastic.
In general, how much harder should a cutting tool be than the material?
The approximate hardness of the workpiece material that can be processed is as follows.
・ Difference in hardness for stable machining: tool hardness -40HRC
・ Hardness difference that can be managed to be processed: Tool hardness -20HRC
The hardness
(1) As with any tool, it is necessary to know the hardness of the "object to be cut". How to compare the hardness of a material and a cutting tool?
The hardness of the material is: Rockwell hardness (C scale: HRC B scale: HRB), Brinell hardness, Vickers hardness, Shore hardness, tensile strength, etc. There are various hard
Collet (abbreviation for collet chuck) is used in machine tools such as lathes, milling machines, and machining centers. It is a tooling part that fixes the tool, and is a cylindrical jig with a radial sledge.
It is fixed by tightening it with a zipper from the outside.
Of the retainers attached to the spindle and tool post, those with a convex ho
