With technological advancements, a wide variety of pipe bending machines have emerged to fill market gaps and meet diverse needs. The industry has consistently embraced scientific methods, cutting-edge technology, and modern management practices to enhance product performance. By integrating advanced foreign technology and equipment, manufacturers are developing and producing comprehensive series of bending machinery. High-tech CNC pipe bending machines enable the creation of required bends and shapes in a single forming process—such as for exhaust outlets and turbo intakes—resulting in seamless bends with consistent diameters and no cracking. Our products are widely used across industries including automotive, motorcycle, steel furniture, leisure goods, air conditioning, petrochemicals, and aerospace.

To conserve resources and reduce costs effectively, selecting the right pipe bending machine is essential. Why is this the case? In pipe bending and related machining processes, drill bits are among the most frequently consumed components. Understanding why these bits wear out so quickly is crucial; let us analyze this in detail. Drill bit wear involves both frictional wear and chemical wear. Chemical wear arises from the interaction between decomposition products released during the drilling of composite PCB materials and the carbide (tungsten carbide-cobalt) composition of the bit; this chemical corrosion becomes particularly pronounced at temperatures around 300°C. When drilling speeds drop below 150 mm/min, chemical wear ceases to be the dominant factor, and frictional wear becomes the primary cause of degradation. Key factors influencing PCB drilling wear include micro-cutting speeds and the ratio of the drill radius to the width of the fiber bundles.

Research indicates a correlation between the ratio of the drill radius to the fiber bundle (glass fiber) width and the rate of tool wear. In practical applications, a new drill bit typically handles 2,500 holes before requiring regrinding; a reground bit manages approximately 1,500 holes before needing a second regrind. During the PCB micro-drilling process, axial force and torque increase alongside feed rates and drilling depth, primarily due to issues related to chip evacuation. As drilling depth increases, chip evacuation becomes difficult. This creates challenges when cutting composite materials—such as those containing fiberglass, aluminum, and resin binders—as the resin's melting temperature and the nature of the composite materials complicate the process. The material's affinity for the drill bit can lead to chip clogging; once this occurs, axial force and torque rise rapidly, often causing the micro-drill bit to fracture. Micro-drill breakage is typically caused by a combination of torsional and bending stresses resulting from this clogging and the consequent surge in cutting torque. Reducing cutting torque and axial force is therefore key to preventing micro-drill breakage, which is otherwise accelerated by the increased wear associated with machining these materials.

Zhangjiagang Huameng Machinery Technology Co., Ltd. specializes in the manufacture of pipe bending machines, including CNC, hydraulic, and fully automatic models. Adhering to the business philosophy of "Customer First, Integrity-Based," we sincerely welcome new and existing customers to visit us; our entire team is dedicated to providing you with comprehensive service.