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Selection of cutting parameters for gun drills 1. Selection of cutting parameters for gun drills: The cutting line speed is confirmed based on the processed data, but gun drills generally use high-speed, low feed cutting methods. 2. The selection requirements for the cutting speed Vc of the gun drill take into account the tool life, […]

Common problems and solutions of drill bits for deep hole drilling Surface roughness of the hole 1. Chip adhesion: reduce cutting speed; Avoid blade breakage; Replace with cutting fluid with high extreme pressure and improve the filtration situation; Increase the pressure and flow rate of cutting fluid. 2. Poor coaxiality: Adjust the coaxiality between the

Characteristics of deep hole drilling: 1. The tool holder is limited by the aperture, with a small diameter and a large length, resulting in poor rigidity and low strength. During cutting, it is prone to vibration, ripples, and taper, which affect the straightness and surface roughness of the deep hole. 2. When drilling and expanding

Compared with general parts processing, deep hole drilling mainly has the following four processing process characteristics: (1) The surface of deep hole drilling parts is machined into a semi closed state. The operator cannot directly inspect the attachments of the tool. In addition, the chip removal space is small, the cutting heat is not easily

Hard alloy gun drill, as the name suggests, is a drill bit made of hard alloy. Due to its slightly longer length compared to other drill bits, it resembles a long gun and is called a gun drill. Hard alloy gun drill is often used to machine deep holes, so it is also called a

Improving the structure of hard alloy drill bits can enhance the quality of the inner hole. 1. Grind the drill bit into a geometric shape suitable for high-speed drilling. Because high-speed drilling requires the drill bit to have good chip breaking and chip removal performance. 2. Require the grinding to come from a well centered

Hard alloy deep hole drill, also known as hard alloy gun drill, is a high-quality tool necessary for deep hole and shallow hole machining. In the process of hole machining, hard alloy deep hole drill has great quality advantages and provides great help for efficient and advanced hole machining technology, solving many difficult problems in

Hard alloy gun drill, also known as deep hole drill, represents advanced and efficient hole machining technology. It can be used not only for machining deep holes (diameter to length ratio 1:250), but also for machining shallow holes (diameter to length ratio 1:1). It consists of three parts welded together: drill shank, drill rod, and