Cutting velocity of YG6 hard alloy end mill when turning gray cast iron in turning process
The turning process is one of the most commonly used machining methods for the manufacturing and repair of mechanical parts. In the process of turning, the cutting action of the cutter and the rotating workpiece is extended on the circumference of the turning circle, and the cutting operation of a certain depth is carried out by several turns. As an important parameter of the cutting process, the cutting velocity directly affects the quality of the surface of the workpiece and the cutting force, thus affecting the efficiency and quality of the machining process. Therefore, it is necessary to reasonably select the cutting parameters such as the material of the cutting tool, the type of cutter and the cutting velocity.
The YG6 hard alloy end mill is considered an optimal option for machining gray cast iron. YG6 lathe cutter are made of a combination of tungsten and cobalt material, making it extremely wear-resistant, with excellent cutting performance and a long service life. In order to effectively analyze and optimize the cutting process when using YG6 hard alloy lathe cutter for machining gray cast iron, the cutting velocity must be studied.
In the process of turning gray cast iron with YG6 hard alloy lathe cutter, the cutting velocity is generally divided into two parts: the first is the main cutting velocity (Vf) and the second is the feed rate of the cutter (f). The main cutting velocity Vf is an important parameter of the cutting process and is related to the cutting tool material, the rake angle of the cutter and the type of machined workpiece. Generally, in the turning process of gray cast iron, it is necessary to adjust the cutting velocity according to the size of the workpiece, the amount of cutting and the machining allowance.
In the process of turning gray cast iron with YG6 hard alloy lathe cutter, it is generally recommended to use a main cutting velocity of 35-60 m/min. This velocity range is determined based on a comprehensive factor such as the type of cutting tool material, the rake angle of the cutter and the condition of the machined surface. If the cutting force is too large or the surface roughness is too high during the turning process, the cutting velocity should be reduced appropriately. In addition, when turning the large-sized workpiece of gray cast iron, the cutting speed should be appropriately increased, but it is not recommended to exceed 60 m/min, but should be increased within the range of cutting speed that can effectively ensure the cutting quality.
Feed rate (F) during the machining of gray cast iron is affected by multiple factors such as the main cutting speed and the cutting depth, and generally has a certain range. The feed rate of YG6 hard alloy lathe cutter when turning gray cast iron is generally not recommended to exceed 0.08 mm/rev. Considering the cutting force and uneven disposition of chips, it is necessary to reduce the amount of feed appropriately in the process of turning with the YG6 hard alloy lathe cutter.
In conclusion, when using YG6 hard alloy end mill for turning gray cast iron, the main cutting velocity should be in the range of 35-60 m/min, and the feed rate should not exceed 0.08 mm/rev. It is necessary to adjust the cutting velocity and feed rate according to the size of the workpiece, the amount of cutting and the machining allowance so as to effectively ensure the cutting quality and reduce the cutting force and surface roughness.
