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G. Licht, K. Hofstetter and S. Licht, RSC Sustain., 2024, 2, 2496 DOI: 10.1039/D4SU00234B

Carbanogels are carbon nanotube (CNT) lattices formed by carbon capture and utilization molten carbonate electrolysis of CO2. Higher tensile strength polymer composites with these CNTs from CO2 are prepared with epoxies and thermoplastics. The composites use less polymer to achieve strength, thereby lowering the polymer's carbon footprint.

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HIT utilized HSK-E40 ultrasonic machining module for profile grinding of aluminum oxide (Al2O3) ceramic.  Along with Ultrasonic Electroplated Diamond Grinding Tool, the high frequency micro-vibration of ultrasonic brought easier removal of ceramic particles.  The reduction in grinding force and tool wear not only contributed to great workpiece quality but also allowed for an increase in feed rate, which enhanced 2x of the overall machining efficiency.

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A1  HIT’s ultrasonic machining module has the ability to automatically scan for the proper frequency of the corresponding tool (within the standard frequency range of 20 – 32kHz).  The system can even further adjust the frequency range, depending on specific tools used by the clients.  Over the years, most of the tools in general have been validated to be available for HIT’s ultrasonic machining module system.F11. HIT ultrasonic machining driver moduleMore information on HIT Ultrasonic Machining Module

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A2  HIT aims to help clients face the challenges in Tungsten Carbide machining.  This includes providing the optimum machining parameters and services to ensure clients having the best experiences in using HIT’s ultrasonic machining module system.  It is not just buying a product from HIT, but obtaining the knowledge, services, and efforts from the most professional team.F12. HIT ultrasonic tool holders

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About Tungsten Carbide F1. brazed plates made of Tungsten Carbide materialTungsten Carbide, also known as Cemented Carbide, is an alloy of tungsten and carbon.  It is a metal-like substance and is approximately 2 to 3 times as rigid and dense as steel.  Tungsten Carbide is often referred to as a Hard Metal, since it possesses very high hardness in relation to other metals.  The Mohs hardness rating of Tungsten Carbide is around 8.5 ~ 9, and it is an extremely stable substance which does not oxidize under normal temperatures and keeps its stable characteristics even in severe environments.Tungsten Carbide’s hardness and resistance to heat make it an ideal material for cutting tools and high-performance wear parts to be used in the environments under high temperature and high speed.  Due to its exceptional hardness and wear resistance, Tungsten Carbide has a wide range of application in many industry sectors such as metal machining, wear parts for mining, metal forming tools, cutting tips for saw blades, etc.   How Tungsten Carbide Machining Works? Owing to the extremely high hardness of Tungsten Carbide, it is impossible to be machined by traditional machining process such as turning, milling, or drilling.  Though it can be machined by special tools, including PCD, CNB, and ceramic tools, these cutting tools will easily wear out and lose the sharpness.F2. metal material grinding processGenerally, Tungsten Carbide will be grinded with diamond tools or machined by electrical discharge machining (EDM).  Though Tungsten Carbide is machinable by using these machining methods, the machining process is destined to face multiple difficulties and challenges.   Difficulties in Tungsten Carbide Machining Tungsten Carbide Machining Challenges in Quality and Tool LifeTungsten Carbide is incredibly hard and difficult to machine.  Its hardness and brittleness make it easily cracked or chipped during the machining process, and it also chips the cutting tools very easily.  Generally, it is impossible to be machined by traditional machining process.  Though it can be machined by special tools, such as PCD, CNB, and ceramic tools, these cutting tools lose their sharpness easily.F3. carbide cutting tools for industrial applications Tungsten Carbide Machining Challenges in EfficiencyThe control of vibration and cutting force is extremely important to machining Tungsten Carbide, in virtue of its high density, rigidity, and brittleness.  If the vibration and cutting force are not well-controlled, it is very subject to micro cracks and fragmentation.  Therefore, the machining process is often extremely time-consuming and has constantly been tormenting the processing manufacturers when dealing with this material.   What Does HIT Ultrasonic Machining Bring to Tungsten Carbide Machining? F4. Tungsten Carbide machining processHIT’s ultrasonic-assisted machining technology provides the superimposition of the tool rotation with a high-frequency oscillation in longitudinal direction, generating over 20,000 times of micro-vibration per second.  The mechanism helps reduce cutting forces and facilitates chip removal process.F5. HIT's ultrasonic machining technology with high-frequency oscillation in longitudinal direction facilitates chip removal processThe reduction in cutting forces not only decreases frictions between tools and workpieces, but also allows feed rates to be increased.  This greatly improves the quality of workpieces and the stability of tool life, and saves quite an amount of processing time.F6. HIT's ultrasonic machining technology helps reduction in cutting force, bringing more stability in tool lifeFacilitating chip removal process diminishes frictions on both tools and workpieces caused by excessive amount of chips.  HIT’s ultrasonic high-frequency micro-vibration allows chips to break easily and lessens the occurrences of entangled chips.  This also displays a great benefit to both the quality of workpieces and the stability of tool life.More information on HIT Ultrasonic Machining Technology   Two Successful HIT Cases of Tungsten Carbide Machining Tungsten Carbide Machining Case 1 : (Slot) Trochoidal MillingF7. Tungsten Carbide ultrasonic-assisted (slot) trochoidal milling workpiece

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More information on Tungsten Carbide: (Slot) Trochoidal Milling Tungsten Carbide Machining Case 2 : Threading & GrindingF10. Tungsten Carbide threading & grinding workpiece HIT carried out threading (M10x1.5P) and grinding (h-shape) on a 50x70x10mm Tungsten Carbide workpiece.  Using HIT’s ultrasonic tool holder HSKA63 with the integration of CTS, ATC, and CNC automation system, HIT completed the entire machining process within 5 hours, compared to over 12 hours by the traditional EDM process.  The surface roughness of the h-shape grinding went from Ra > 0.8μm to the average of Ra < 0.1μm.This feature is widely applied in the Precision Machinery industry, especially being used for Tungsten Carbide molds and punches.More information on Tungsten Carbide : Threading & Grinding   Tungsten Carbide Machining FAQ   Q1  How do I know the tools I used to machine Tungsten Carbide can be fitted into HIT’s ultrasonic machining module system?A1  HIT’s ultrasonic machining module has the ability to automatically scan for the proper frequency of the corresponding tool (within the standard frequency range of 20 – 32kHz).  The system can even further adjust the frequency range, depending on specific tools used by the clients.  Over the years, most of the tools in general have been validated to be available for HIT’s ultrasonic machining module system.F11. HIT ultrasonic machining driver moduleMore information on HIT Ultrasonic Machining Module Q2  How to adjust feed rates and amplitude when I start machining Tungsten Carbide with HIT’s ultrasonic machining module system?A2  HIT aims to help clients face the challenges in Tungsten Carbide machining.  This includes providing the optimum machining parameters and services to ensure clients having the best experiences in using HIT’s ultrasonic machining module system.  It is not just buying a product from HIT, but obtaining the knowledge, services, and efforts from the most professional team.F12. HIT ultrasonic tool holders  Tungsten Carbide Machining?  Choose HIT Contact us if you are looking for a better way to improve machining efficiency, quality, and tool life.

HIT carried out threading (M10x1.5P) and grinding (h-shape) on a 50x70x10mm Tungsten Carbide workpiece.  Using HIT’s ultrasonic tool holder HSKA63 with the integration of CTS, ATC, and CNC automation system, HIT completed the entire machining process within 5 hours, compared to over 12 hours by the traditional EDM process.  The surface roughness of the h-shape grinding went from Ra > 0.8μm to the average of Ra < 0.1μm.This feature is widely applied in the Precision Machinery industry, especially being used for Tungsten Carbide molds and punches.More information on Tungsten Carbide : Threading & Grinding