Both burrs and shock marks are common defects in the extrusion of aluminum profiles. Burr is the residual particles and very fine metal particles appear on the surface of metal parts, and shock mark is the relatively concentrated particles on the surface of the profile. The causes of burrs and shocks are multifaceted, and [...]

The burrs are found in metal casting, milling or electroplating processes, with scraps on the surface of the metal parts or very fine microscopic metal particles. The appearance of burrs will greatly reduce the quality standards of metal parts, so it should be prevented as much as possible, or try to remove burrs. Here [...]

Carburizing is a common process for heat treatment of metal surfaces. It is mostly used for low carbon steel or low alloy steel. The steel is placed in an active carburizing medium and heated to a high temperature of 900 to 950 degrees Celsius. After sufficient time, the activated carbon atoms in the carburizing [...]

CNC machining is the most widely used machining method at present, and it is also the basic skill that every machining worker must master. After the start-up, workpiece clamping, workpiece hit count, preparation tool and processing parameters are set, it enters the start-up process. In this process, what precautions need to be noticed by the operator, [...]

For CNC machine shops, many managers say the costs are too high. These excessive costs include not only labor costs and material costs that change with market changes, but also waste of resources caused by improper management of business managers. Therefore, machine shop managers can achieve cost reduction by avoiding unnecessary waste. As an excellent [...]

Regardless of the industry in which it is engaged, management is one of the indispensable elements of an organization. This is especially true for mechanical processing plants. Since the field of machining is a labor-intensive industry, it is especially important for human management. This article will introduce some of the factors that are related [...]

When the tungsten steel milling cutter is milling, the cutting edge that participates in the cutting is long and has no free travel, so the productivity is high. There are many types of milling cutters, and their structures are different. The application range is wide. According to their applications, they can be divided into [...]

1. Surface quality problems of mechanicalproducts The quality of mechanical products is not only directly related to its performance, but also affects its service life. Generally speaking, the quality of mechanical products depends on two parts. The first is the quality of the processed parts. Some materials have their own flaw, such as easy [...]

There are many failure modes of parts, which can be classified into three types, excessive deformation, fracture and surface damage failure. Each type can be divided into several different situations. Here is mainly to share with you the form of excessive deformation failure. The so-called excessive deformation, that is, to [...]

With the development of the machining industry, more and more parts are produced by cold-moulding in production, and more and more types of cold-deformed molds are used. Cold volume die forging (cold enthalpy, cold extrusion, embossing, etc.); sheet metal stamping (such as drawing, blanking, trimming, punching, etc.); material rolling (cold rolling, rolling forming, etc.). [...]

As a mechanical design engineer, when the designed parts need to be heat treated, it is necessary to eliminate the casting stress of the material and improve the cutting performance, rigidity and wear resistance of the parts. Below we will introduce the method of heat treatment of the parts. 1. [...]

The machining error reflects the level of machining accuracy. For mechanical processing plants, to ensure the quality of the product, the first thing to do is to control the error in the processing. So, what are the common machining errors in actual production? Let's take a look at it in detail. 1. Manufacturing [...]

The mold manufacturing process is a complex process. From design, processing, assembly, commissioning to final real use, there are many factors affecting the quality of the mold throughout the life cycle, which requires the attention of the operator during the processing. What are the reasons that affect the quality of the mold? [...]

In the single-piece CNC machining, the blank is generally processed. Therefore, there will be interference of excess blank amount when the reverse machining is performed, and other tools are needed to meet the requirements. In the actual processing, although the ordinary reverse-side method can meet the requirements, there are problems such as cumbersome operation [...]

Turning is one of the most widely used in the machinery manufacturing industry. The number of lathes and worker are large, the processing range is wide, and the tools and fixtures used are numerous. Therefore, the safety technical problems of turning processing are particularly important. This article will give you a detailed introduction to the safety [...]

The occurrence of wear during machining is a common phenomenon in production. The reason may be due to various factors such as the material of the workpiece, the environment, and the processing method. Mechanical wear can adversely affect the processing quality, processing accuracy and processing efficiency of the product. Therefore, it is very important [...]

In machining, burrs are often generated during the process of cutting metal. The burrs not only have a serious impact on the accuracy and surface quality of the workpiece, but also affect its practical performance. In end milling, the formation of burrs is affected by many factors, which not only has a great relationship [...]

FRP is a thermosetting plastic product with epoxy resin as binder, glass fiber as filler and small amount of compounding agent. Its density is small and its specific strength is high. The main component is silicon oxide, which is formed by high-speed melting of glass after high-temperature melting, and its hardness and strength are [...]

In the process of mechanical production, stainless steel is often used in processing due to its corrosion resistance in the atmosphere or corrosive media. Stainless steel can be classified into chrome stainless steel and chrome nickel stainless steel according to chemical composition. According to its metallographic structure, it can be divided into martensitic stainless [...]

For manufacturing companies, rising raw materials, logistics, manpower and land and other related costs have made the company's survival and development difficult, and the profits that were previously proud are also declining now, which makes it survive in the cracks. Manufacturing companies have become more difficult. So, in the turning point of this industry [...]

It is easy to have safety accident in the process of machining due to some improper operation or equipment failure. Therefore, safety is very important in the production process. Most small and medium-sized mechanical processing plants often have some safety accidents and mechanical injuries due to non-standard safety management systems, inadequate safety operation procedures, incomplete [...]

In today's manufacturing companies, most of the production costs are spent on material procurement. In general, material costs account for more than 60% of the total cost. In the machinery, hardware manufacturing and other industries, material costs account for a large part, which resulting in lower corporate profits. Therefore, reducing material costs has become [...]

Nowadays, the mechanical processing market is facing increasingly fierce market competition. For some small and medium-sized mechanical processing plants, extensive factory management is no longer suitable for the development of the company. The quality of mechanical processing factory management directly affects the competitiveness and vitality of the company in the market. Therefore, for the [...]

With the development of science and technology, the machine tool has always been pursuing better quality and greater productivity, and will have certain improvements in terms of cutting power, structural static stiffness, processing accuracy, and production line automation. However, there are also many problems, such as the tremor of cutter that often plague CNC machining. [...]