Metal grinding process is a process that removes the surface of the workpiece by cutting to obtain a smooth surface. Grinding is one of the main methods for precision manufacturing of machine parts. For the plane with high precision requirements and the plane processing of quenched parts, grinding is generally adopted. We briefly introduce the advantages of the metal grinding process:
I. Suitable Parts for CNC Grinding Machines
(1) Mass parts
The preparation time of working procedure using numerical control grinding machine occupies a high proportion. For example, process preparation, programming, adjustment and trial cutting of the first part of a part, etc., the sum of these comprehensive working hours is often tens to hundreds of times that of a single part, but the contents of these numerical control lathes can be stored and reused.
(2) Quality parts
CNC grinding machine can realize high precision, high quality and high efficiency grinding process. Compared with special grinding machines, it can save a lot of special technological equipment.
(3) Centralized parts
When numerically controlled grinding parts, the grinding tool is exactly the same as the corresponding non-numerically controlled grinding machine, but it can carry out some composite processes. The common grinding machine is mainly used for grinding cylindrical surfaces, conical surfaces or stepped shaft shoulders. The numerically controlled cylindrical grinding machine can also grind annular surfaces and complex combined surfaces of the above various forms.
Although some parts are small in batch and common lathes are complex in shape and high in quality, they cannot meet the above requirements on non-numerical control grinding machines and can only be arranged on numerical control grinding machines.
Second, the characteristics of grinding technology
(1) high grinding efficiency
High speed grinding of abrasive tools with respect to workpieces can achieve a high metal removal rate. In some processes, turning, milling and planing have been replaced and directly formed from blanks. At the same time, abrasive particles and workpieces generate a large amount of heat.
(2) high grinding precision
High precision and low surface roughness of the machine tool can be obtained. The layer of chip removed from each abrasive particle is very thin, so the surface can obtain high precision and low surface roughness.
(3) high grinding energy consumption
Cutting power is large and energy consumption is large. Abrasive tools are composed of many abrasive grain numerical control machine tools. When cutting, it usually has a negative rake angle, and the tip has a certain arc radius, so the cutting power is large and the amount of energy-consuming machine tools is large.
The above is the treatment plan after the metal grinding process goes wrong.High-quality raw materials are the premise to obtain good grinding quality. In addition, the grinding process precision is closely related to the workpiece surface condition and heat treatment process.
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Source of this article:https://www.ymp.com.hk/