Category: Manufacturing Technology knowledge

Nowadays, in more and more industrial applications, lasers have been seen as an alternative solution for welding plastics/composites directly to metals. This non-contact processing method provides the highest process flexibility. At present, one of the driving factors in the automotive industry is how to make lighter cars without increasing costs or causing damage or impact on performance, quality and safety. For seat structures, this mainly includes the use of thin, higher strength steel. In recent years, mixed material structures have also been widely studied. This also applies to metal only hybrid structures and component structures made of metal/plastic composites. The…

1 Salt bath heat treatment Company A is located in Sendai, Miyagi Prefecture, Japan, about 300 km from Tokyo. The company mainly produces a variety of mechanical blades, the longest of which is more than 5m. Blade materials mainly include high-speed steel, hard alloy and alloy tool steel. Heat treatment heating furnace includes salt bath furnace, vacuum furnace, box type multi-purpose furnace, large protective atmosphere furnace, large gas carburizing furnace, etc. There are two sets of salt bath furnaces being produced on site: one is Cr12MoV steel tool quenching line, and the other is high-speed steel or base steel quenching…

How does the laser cutting machine technology deal with the problem of burrs? When some customers use the laser cutting machine to process sheet metal, the effect of the workpiece cut is very unsatisfactory, and there are many burrs. Then many customers begin to doubt the quality of the laser cutting machine products, but it is not. During the cutting process of metal laser cutting machine, due to improper operation and technical problems, the processed materials will not produce burrs. Burrs only occur in metal cutting, and there is no burr problem in non-metallic cutting. How are burrs produced? In…

1、 Workpiece over cutting: reason: 1. The tool strength is not too long or too small, causing the tool to snap. 2. Improper operation by the operator. 3. Uneven cutting allowance. (For example, 0.5 for the side of the curved surface and 0.15 for the bottom) 4. Improper cutting parameters (such as too large tolerance, SF setting too fast, etc.). improve: 1. The principle of using a knife: big or small, short or long. 2. Add the corner cleaning procedure, and leave the allowance as uniform as possible (the allowance on the side and bottom shall be consistent). 3. Reasonably…

1、 Production workshop The layout of the production workshop focuses on two aspects: under the condition of meeting the production demand, optimize the layout according to the production process, and meet the requirements of flexible energy use under specific production conditions. 1. Power supply, while meeting the power demand for stable production, has appropriate margin, so as not to cause excessive non functional consumption due to excessive surplus. 2. Build efficient cooling water circulation facilities and equip the cooling water system with an effective insulation and thermal insulation system. 3. Optimize the overall production layout of the workshop. Many production…

Heat treatment is a process to artificially change the internal structure and structure of a metal or alloy by means of a certain thermal action (sometimes combined with mechanical, chemical or other actions), so as to obtain the required properties. The main functions and purposes of heat treatment in the production process of metal materials and products are as follows: 1. Improve process performance and ensure smooth process; 2. Improve the use performance and give full play to the potential of materials. 1、 Essence of Metal Heat Treatment In the production process of various metal materials and products, in order…

Figure 1 shows the structural diagram of U-shaped bending piece, which is made of 3mm thick 60Si2MnA spring steel. Due to the functional requirements, the bent arms are required to be perpendicular to the bottom plane, and the perpendicularity is required to be 0.1mm φ The 10H10 hole is coaxial. Fig. 1 Structural Diagram of Parts Process analysis and scheme determination The shape of the part is not complicated, and the shape is U-shaped structure. It is only a composite part of blanking and bending, with 2 parts φ 10H10 hole is of ten grade accuracy, which can be ensured…

1、 Cause Analysis and Countermeasures of Rough and Medium Rolling Area Accidents 1. Steel stacking between racks after the rolled piece is bitten Failure cause: (1) The rolling speed and roll diameter are set incorrectly; (2) The tension setting after roll (groove) change is too small; (3) The steel temperature fluctuates too much; (4) The roll breaks suddenly; (5) The motor of a rolling mill suddenly speeds up or slows down due to the electric control system. Treatment measures: (1) Accurately set the rolling speed, roll diameter and tension; (2) Hold the temperature and wait for rolling, and notify the…

The manufacturing cell of a machine is a part, which is connected to form a machine through a certain form. And one of the connection forms between parts is screw connection, therefore, screw is often one of the most common structures on parts. The common methods for machining thread include turning, tapping and rolling, and tapping is the most widely used internal thread processing method. Especially for small size internal threads, tapping is almost the only processing method. There are generally two methods of tapping threads, namely, hand tapping and machine tapping. In order to facilitate thread processing, the following…

In recent ten years, the process operation of the blast furnace has changed greatly, especially the promotion of the coal injection process, but there is almost no change in the charge. Although there are some new methods to control the burden distribution, the actual burden is still composed of lump ore, sinter, pellets, coke and a small amount of flux. This article will explore the idea of using scrap steel cut into pieces as furnace charge. There are many possible advantages of adding scrap blocks to blast furnace burden. As the scrap is a fully reduced metal, it only needs…