In machining, hole machining accounts for about 40% of the cutting process. There are about 5,000 holes in daily auto parts, and there are many holes with complex shapes. The machining of the hole is carried out inside the workpiece, tungsten carbide inserts and certain machining skills are required to obtain higher precision. The processing of holes is roughly divided into 5 categories, we will talk about it in detail.

1. Drilling: see the picture below, it is drilling. The so-called drilling process is a processing method that directly drills holes without bottom holes.

2. Boring processing: see the figure below, it is a kind of processing to enlarge the bottom hole, also known as "reaming".

3. Reaming processing: still look at the figure below, and finish the bottom hole, which is a kind of precision reaming. This kind of machining method has the characteristics of small allowance, which is very suitable for the machining with high requirements for hole wall machining accuracy. At this time, the tool is also called Carbide Stainless Steel Inserts "reamer".

4. Roller finishing: see the figure below, a method in which soft metal is rubbed by hard material, and the precision of the machined surface is improved by plastic deformation.

5. Thread processing: When processing smaller threads, we use "tap" tools for processing, which is a common method for processing internal threads.

In the process of hole processing of aluminum alloy machining center, it is necessary to fully consider the performance of the equipment, the type of tool and the method of use, so as to ensure that the most suitable hole is processed by an efficient and economical method.


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