Steel Compression Double Seal Crimp Flange Fittings
The crimped thread joint is composed of an inner metal ring, the root of turnup flange, an union, and positive and negative threaded sleeves; the connection type is divided into union connection and positive and negative threaded sleeve connection; reinforced steel wires or glass fibres are flipped 180 degrees at the root of the turnup flange.
Steel Compression Crimp Flange Fittings,Double Seal Crimp Flange Fittings,Steel Compression Flange Fittings,Uhmwpe Pipe Electrofusion Straight SHANDONG EASTERN PIPE CO., LTD. , https://www.dfuhmwpe.com
PCBN tool market prospect analysis
Abstract High-speed cutting technology has evolved significantly, driven by continuous improvements in machine tools and tooling systems. Among these, the advancement of tool materials plays a crucial role in determining the success and application of such technologies. Research indicates that as cutting speed increases during high-speed machining, the cutting force generally decreases, while the cutting temperature rises sharply. After reaching a certain threshold, the rate of temperature increase tends to slow down.
The primary causes of tool degradation under high-speed conditions include mechanical wear, friction-induced damage, adhesion, chemical erosion, chipping, crushing, and plastic deformation caused by both cutting forces and elevated temperatures. Therefore, for high-speed cutting, the most critical properties required in tool materials are high-temperature mechanical strength, favorable thermophysical characteristics, anti-welding performance, chemical stability (such as resistance to oxidation, diffusion, and solubility), and good thermal shock and coating crack resistance.
PCBN (Polycrystalline Cubic Boron Nitride) tool materials meet these requirements and are highly versatile, enabling them to process a wide range of workpiece materials under various cutting conditions. Currently, PCBN tools can cut steel at speeds ranging from 2000 to 5000 m/min, with lower-speed applications for steel (100–500 m/min) and hardened steel (100–200 m/min).
Traditional cemented carbide tools are mainly tungsten-cobalt based, and China is the world’s largest supplier, providing 75%–80% of global tungsten resources. However, according to available research, the global tungsten reserves are expected to last only 50–70 years. The rapid development of PCBN tools offers a promising solution to this resource challenge. In the future, new tool materials will increasingly rely on cubic boron nitride, especially in the machining of ferrous metals, to enable pollution-free, clean, low-energy, and environmentally friendly cutting processes.
PCBN tools are known for their exceptional hardness, wear resistance, and chemical stability, making them ideal for green manufacturing practices such as high-speed cutting, dry cutting, and hard turning. These tools eliminate the need for cutting fluids, reducing environmental impact. With the rapid growth of CNC machining technology and the widespread adoption of CNC machine tools, the production and use of super-hard tools like PCBN have become more prevalent. Today, PCBN tools are widely used across multiple industries, including automotive parts, bearings, and gear machining, significantly advancing the field of precision cutting and advanced manufacturing.
Due to their outstanding fracture toughness, wear resistance, and chemical stability, PCBN tools have become the preferred choice for cutting hardened steels and various types of cast iron. Their superior performance in terms of machining accuracy, cutting efficiency, and tool life makes them a valuable asset in modern manufacturing. The adoption of PCBN tools not only enhances productivity but also reduces costs significantly.
Modern machining techniques such as green machining, grinding, milling, hard machining, high-speed cutting, and dry cutting all benefit from the application of PCBN tools. As a result, PCBN tools have become an essential part of the cutting industry. In the coming years, the market share of PCBN tools is expected to grow steadily, making them an indispensable component in the evolving landscape of modern manufacturing.