Under the trend of lightweight automobiles, most cylinder blocks are now using aluminum parts. Due to the high hardness of PCD tools , the PCD surface is ground and polished, and there will be no chip accumulation during processing. The tool will have a longer processing life, and the processing speed of PCD tools can reach up to 3000m/min, achieving better surface processing quality. Generally, PCD tools are used for aluminum alloys.

When the engine cylinder block is cut using certain high-strength forged aluminum alloys, harmful ribbon shaped chips and spiral shaped chips are generated, causing serious problems to the machining process. This type of chip not only affects the chip performance of the tool, but may also cause damage to the machine tool, leading to frequent shutdowns and cleaning of areas blocked by chips during the machining process.

There are many chip breaking methods in actual machining, and using the tool chip groove for reasonable chip breaking is a very effective chip breaking method in the chip breaking process. Machining a well-designed 3D chip groove on PCD tools can effectively prevent the generation of unwanted ribbon and spiral chips.

Research has shown that compared to PCD without machining chip grooves, PCD tools with 3D chip grooves can increase their service life by at least 20-30%. At the same time, it reduces the risk of product scrapping, especially in drilling and processing, where chips can be smoothly discharged from the outside of the hole without damaging the surface smoothness of the inner hole. The operational safety has also been improved.

The PCD cutting tool for machining automotive engine cylinder blocks increases the effect of chip breaking grooves:

1. Effectively preventing the generation of ribbon shaped and spiral shaped chips during processing, improving the machining accuracy of the workpiece, and omitting secondary processing.

2. During processing, aluminum shavings will not entangle on the tool, and the tool life will be increased by at least 20-30%.

3. When machining holes, tools with chip grooves can effectively control the chips, allowing them to be smoothly discharged from the outside of the hole without damaging the surface smoothness of the inner hole, and improving the product qualification rate.

4. No need to manually clean aluminum shavings, improving operational safety.

Therefore, reasonable design and precise and efficient processing of 3D chip grooves on PCD tools are particularly important. It can not only improve the service life and processing efficiency of PCD tools, but also improve the machining quality of workpieces, machine tool life, and operational safety.