In modern manufacturing, CNC (computer digital control) processing technology plays a vital role. Among them, turning, milling, cutting and turning milling combined processing are common process methods. They each have unique characteristics and scope of application, but also have some advantages and disadvantages. In-depth understanding of the similarities and differences of these processing technologies is of great significance for optimizing the production process and improving the processing quality and efficiency.

5-axis CNC machining is an advanced manufacturing process that adds two rotating axes (A, B or A, C) to the three linear axes (X, Y, Z). This type of processing has many advantages. It can realize the multi-sided machining of complex shape parts, greatly improve the machining accuracy and efficiency, and reduce the number of clamping and error. For parts with deep cavity, reverse buckle, complex surface and other features, 5-axis CNC machining can easily cope with. In the aerospace, automotive, mold and other industries, 5-axis CNC machining is widely used in the manufacture of high-precision key parts, such as engine impellers, aviation structural parts, automotive molds and so on.

Non-standard custom processing is relative to the standard parts, before we understand the non-standard parts and take a look at what is the standard parts. Standard parts refer to the structure, size, drawing, marking and other aspects are completely standardized, and commonly used parts produced by professional factories, such as threaded parts, rolling bearings and so on. The broad standard parts include standardized fasteners, connectors, transmission parts, seals, hydraulic components, pneumatic components, bearings, springs and other mechanical parts. The narrow definition includes only standardized fasteners. The domestic commonly known standard parts are short for standard fasteners, which is a narrow concept. In addition, there are industry standard parts, such as automobile standard parts, mold standard parts, etc., which are also generalized standard parts.

The processing methods of holes include drilling, reaming, reaming, boring, drawing, grinding and finishing of holes. The following small series for you to introduce several hole processing technology in detail, crack the hole processing problems.

The hole is an important surface on the box, bracket, sleeve, ring, and disk parts, and it is also a surface often encountered in machining. In the case of the same processing accuracy and surface roughness requirements, it is difficult to process the hole than the outer round surface, low productivity and high cost.

This is because: 1) the size of the tool used in hole processing is limited by the size of the hole being processed, and the rigidity is poor, which is easy to produce bending deformation and vibration; 2) When machining the hole with a fixed-size tool, the size of the hole processing often directly depends on the corresponding size of the tool, and the manufacturing error and wear of the tool will directly affect the processing accuracy of the hole; 3) When machining holes, the cutting area is inside the workpiece, the chip removal and heat dissipation conditions are poor, and the processing accuracy and surface quality are not easy to control.

3D printing technology originated in the 1990s, because of its special layer-by-layer deposition forming principle, can quickly and integrated forming of complex structural parts, is regarded as a transformative technology in the field of manufacturing. 3D printing is known academically as Rapid Prototyping Manufacturing (RPM). The technical division of the Manufacturing process is called Additive Manufacturing (AM).

No machine can be made without holes. To connect the parts together, a variety of different sizes of screw holes, pin holes or rivet holes are required; In order to fix the transmission parts, various mounting holes are needed; The machine parts themselves also have many kinds of holes (such as oil holes, process holes, weight reduction holes, etc.). The operation of machining holes so that the holes meet the requirements is called hole machining.

The surface of the inner hole is one of the important surfaces of the mechanical parts. In mechanical parts, parts with holes generally account for 50% to 80% of the total number of parts. The types of holes are also diverse, there are cylindrical holes, conical holes, threaded holes and shaped holes. Common cylindrical holes are divided into general holes and deep holes, and deep holes are difficult to process.

Sheet metal, CNC, 3D printing, is the current market for equipment shell, structural parts, the most common three processing methods.

Each has its own advantages and disadvantages, and sheet metal processing is relatively simple because of the characteristics of forming, high efficiency and low cost, and there are advantages in sample, small batch and mass production.

The common raw materials for sheet metal processing are iron, aluminum, stainless steel and other metal plates, and the main processing technology is laser cutting, bending, riveting, stamping, welding, spraying and other major processes.

With the increasingly updated processing technology, CNC machining has also undergone a lot of changes. Many experts pointed out that in the future, CNC will be the mainstream processing mode. In the CNC machining process, the tool is the most important, today, we will understand the CNC tool in detail.

In the field of machining, after the cnc machining process method and the division of the process, the main content of the process route is to rationally arrange the sequence of these processing methods and processing processes. cnc machining of mechanical parts usually includes cutting processes, heat treatment processes and auxiliary processes (including surface treatment, cleaning and inspection, etc.). The sequence of these processes directly affects the processing quality, production efficiency and processing cost of the parts. Therefore, when designing the cnc machining process route, the order of cutting, heat treatment and auxiliary processes should be reasonably arranged, and the connection problem between the processes should be solved.

In the field of machining industry, the precision size control of drawings plays a vital role, which directly affects the assembly performance and quality of mechanical equipment. The main factor affecting the size of precision machining is the error problem, because the error problem is affected by a variety of factors, in the machine precision machining will inevitably appear a variety of error problems, so only the use of various technical measures, the precision control in a scientific range. This requires technical personnel to strictly process according to the production drawings, and strictly require the machining process flow, so as to ensure the accuracy of the size of the precision machining production drawings to the greatest extent.

Today's machining industry, traditional machining equipment has been unable to meet the quality needs. CNC machine tool equipment replaces ordinary machine tools, and automatic processing equipment such as precision CNC machining and CNC lathe processing replaces traditional machine tools. The following will take you to understand the advantages of CNC machining machine tools and the order of precision mechanical parts processing.