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How to prevent deformation during slow wire processing

 Slow-moving wire processing is a very exquisite and exquisite craft, and sufficient preparations need to be made, so that the processed products can be more quality. The slow-moving wire processing technology has a wide range of applications and is a must in our industries. If you want to do better with less technology, you must master all aspects of the processing knowledge. For example, the most common thing is the deformation during processing.  How can we solve it How to prevent deformation during slow wire processing Speaking of slow wire processing, it uses continuously moving fine metal wires as electrodes. Pulse spark discharge is performed on the workpiece, where it generates a high temperature above 6000 degrees. Moreover, if it wants to improve its quality problems and prevent its deformation, it can firstly start from the following aspects. 1. To prevent deformation, it is impossible for the material to have no internal stress. In particular, the internal stress of the que

KOVAR parts seal preparation and physical properties

Kovar® is a vacuum-melted iron-nickel-cobalt low-expansion alloy. The chemical composition content is controlled in a very narrow range to ensure accurate and balanced thermal expansion performance. At the same time, strict quality control during the manufacturing process of KOVAR machining parts also ensures balance Its physical and mechanical properties are more suitable for deep drawing, stamping and various cutting processes. Material use Kovar® is used for vacuum sealing of hard glass and ceramics, and is widely used in electron tubes, microwave tubes, transistors and diodes. On integrated circuits, it is used for flat integrated circuits and dual in-line packages. Seal preparation All parts made by Kovar® should be degassed and annealed in a wet hydrogen atmosphere. Hydrogen is injected into water at room temperature and gets wet through blisters. Care must be taken to prevent surface carbonization. The heat treatment furnace must have a cooling chamber that provides the same a

What are the rules for metal stamping die scrap tube?

The Purpose Standardize the management of the scrapping of the company's metal stamping dies, prevent the loss of company assets, and formulate this system specially. Scope of application It is suitable for the management of the company's scrap molds. Definition If the molds listed in the assets of the company fall under one of the following circumstances, the use management department may apply for scrapping. 1. Molds that exceed the specified service life. 2. The mold is severely damaged by accidents or accidents, and molds that cannot be repaired or have no repair value. 3. Metal stamping dies that have not reached the service life, but due to safety, quality, efficiency and other issues, the repair still fails to meet the minimum requirements of the customer's product process or affects the production safety and efficiency. 4. Product customers have stopped placing orders or have not placed orders for molds in several years. 4. Responsibilities 1. Responsibilities of th

Advantages and disadvantages of cnc processing different guide rails

There are three main guide rails for cnc machining centers. According to the conflicting nature of the contact surface, they can be divided into hydrostatic guide rails, sliding guide rails, and rolling guide rails. The difference between these three guide rails is relatively large. You must have something to do with cnc processing. Understand, the following editor will briefly introduce their advantages and disadvantages.
There are three main guide rails for cnc machining centers. According to the conflicting nature of the contact surface, they can be divided into hydrostatic guide rails, sliding guide rails, and rolling guide rails. The difference between these three guide rails is relatively large. You must have something to do with cnc processing. Understand, the following editor will briefly introduce their advantages and disadvantages.

The advantages of are as follows:

CNC machining aluminum parts

1. There is an oil cavity between the working surfaces of the two guide rails of the hydrostatic guide rail. After the lubricating oil with a certain pressure is passed in, a static pressure oil film can be formed, so that the guide rail operation surface is in pure liquid conflict, without abrasion, and accuracy retention Good; at the same time, the conflict coefficient is also extremely low, which greatly reduces the driving power; low speed without creeping, high load-bearing ability and good rigidity; in addition, the oil has a vibration absorption effect and good vibration resistance. Static pressure guide rails can be divided into hydrostatic pressure guide rails and gas static pressure guide rails.

  2. The sliding guide has the advantages of simple structure, convenient production, good rigidity, and high-level vibration resistance. Rail plastics are commonly used in two types: PTFE rail soft tape and epoxy wear-resistant rail coating. Plastic sliding guide rails are characterized by good conflict characteristics, good wear resistance, smooth movement, good vibration damping and good manufacturability.

  3. Rolling rails are to place rolling bodies such as balls, rollers, and needles between the rail surfaces, so that the sliding conflict between the rail surfaces becomes a rolling conflict. Compared with sliding guide rails, the advantages of rolling guide rails are: high flexibility, and the difference between dynamic conflict and static conflict coefficient is very small, so the movement is stable, and it is not easy to show creeping phenomenon when moving at low speed; (high positioning accuracy, repeatable positioning accuracy can be Up to 02um; small conflict resistance, easy movement, low wear, good accuracy retention, and long life. However, the roll guide has poor vibration resistance and requires higher protection.

   What are the disadvantages of the three?

   1. The shortcoming of the static pressure guide rail is that the structure is messy, the oil supply system is required, and the oil cleanliness is required. Hydrostatic guide rails are increasingly widely used in machine tools. The hydrostatic guide rails of CNC turret punch presses can be divided into two categories: open type and closed type.

2. The disadvantage of sliding guide rails is that the static conflict coefficient is large, and the dynamic conflict coefficient changes with the speed. The conflict loss is large, and it is prone to creeping at low speed/(1-60mm/min/), and then the positioning accuracy of the moving parts is reduced. Therefore, except for economical CNC machining tools, it is no longer used on other CNC machine tools. At present, most CNC machine tools use plasticized guide rails, that is, a layer of plastic film soft tape composed of plastic and other chemical materials is pasted on the conflicting surface of the moving guide rail.

  3. The disadvantage of the rolling guide is that it is small in damping, which is easy to cause overshoot or oscillation, low rigidity, difficult to manufacture, and more sensitive to dirt and rail surface errors. The rolling guide rail is especially suitable for the occasions where the operating parts of the machine tool require uniform movement, flexible movement and high positioning accuracy.

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