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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much better t

How Do Cnc Swiss Machines Work

How Do Cnc Swiss Machines Work Save 0 What Is Swiss Machine –The full name of the walking CNC lathe, it can also be called the spindle box mobile CNC automatic lathe, the economical turning and milling compound machine tool or the slitting lathe. It belongs to precision machining equipment, which can complete compound  machining such as turning, milling, drilling, boring, tapping, and engraving at one time. It is mainly used for batch  machining of precision hardware and special-shaped shafts. This machine tool first originated in Germany and Switzerland. In the early stage, it was mainly used for precision machining of military equipment. With the continuous development and expansion of industrialization, due to the urgent needs of the market, it was gradually applied to the  machining of civilian products; the development of similar machine tools in Japan and South Korea Earlier than China, it was mainly used in the military industry in the early days. After the war, it was gradually

Spring Design Attention And Roll Forming Method

Spring Design Attention And Roll Forming Method The coiling characteristics and methods of springs are divided into cold coiling method and hot coiling method. Cold winding method: When the diameter of the spring wire is less than 8mm, the cold winding method is adopted. High-quality carbon spring steel wire is usually first cold drawn and then heat treated. After winding, it is generally not quenched, but only tempered at low temperature to eliminate the internal stress during winding. Hot-rolling method: Springs with larger diameter (>8mm) spring wire should use hot-rolling method. Hot rolled springs must be quenched and tempered at medium temperature. The Design Process Of Various Springs ·          Installation space: When designing a  compression spring , it is necessary to have a clear understanding of the space required for the installation of the spring, in order to effectively grasp the basic manufacturing conditions of the compression spring, including the outer diam

What’s the difference between screw, bolt and nut?

(1) bolt:

A type of fastener consisting of a head and a screw (cylindrical body with external thread) to be fitted with a nut for fastening two parts with through holes.This type of connection is called the bolt connection. If the nut is unscrewed from the bolt, it can also make the two parts separate, so the bolt connection is a detachable connection.

(2) screws:

A kind of fastener composed of head and screw can be divided into three types according to their uses — machine screws, setting screws and screws for special purposes.Machine screws are mainly used for fastening connection between a part with an internal threaded hole and a part with a through hole, without nut matching (this connection form is called screw connection, also a detachable connection;It can also be used with a nut for fastening connection between two parts with through holes.Set screws are mainly used to fix the relative position between two parts.Special purpose screws are ring screws for lifting parts.

The best material is 316 corrosion resistant stainless steel, followed by 304.Carbon steel is the next most common material.

The standard of hexagon nut and utility have what

As a standard part, nuts and rivets with pull mandrel have their own standards.Xiaobian on the hexagon nut standard is summarized for the difference and connection and their use.

For hexagon nuts, the commonly used standards are:

GB41 Ⅰ Hexagon nuts — Class C

GB6170 Ⅰ type hexagon nut — A, B grade

GB6171Ⅰ Hexagon nuts — fine tooth — grade A and B

GB6172 Hexagon thin nuts — Class A and B — Chamfered

GB6173 Hexagon thin nuts — fine tooth — grade A and B

GB6174 Hexagon thin nuts — Class B — No chamfering

GB6175Ⅱ type hexagon nut — A, B grade

GB6176Ⅱ type hexagon nuts — fine tooth — grade A and B

GB6177 Hexagon flange nuts — Class A

GB55 hexagon thick nut

GB56 hexagon ultra thick nut

GB1229 Hexagon nuts (high strength for steel structures)

1, ordinary hexagon nuts: widely used, characterized by large fastening force, the disadvantage is that there should be enough operating space in the installation, the installation can use a live wrench, open wrench or glasses wrench, the wrench above all need a lot of operating space.

2, cylinder head hex nut, is the most widely used in all the screws, because its binding force is larger, can use Allen key operation, the installation is very convenient, when used in almost all kinds of structure, more beautiful and tidy appearance, defect is slightly lower than outside hexagonal fastening force, also repeated use can't remove the socket head broken easily.

3, disk head hexagon nut: rarely used in machinery, mechanical properties of the same, mostly used in furniture, the main role is to increase the contact surface with wooden materials and increase the appearance of the ornamental.

4, headless hexagon nut: some structures must be used, such as the need for a large jacking force of the top wire structure, or the need to hide the place of the cylindrical head.

5, countersunk hex socket nut: mostly used in power machinery, the main role of the same hex socket.

6. Nylon lock nut: it is inlaid with nylon apron in hexagonal face to prevent loosening of thread. It is used in strong power machinery.

7, flange nut: mainly play a role in increasing the contact surface with the workpiece, mostly used in pipes, fasteners and some stamping and casting parts.

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