Conprofe Technology Co., Ltd.

The global manufacturing sector is accelerating its transition toward sustainable practices, with CNC machining playing a pivotal role in this transformation. The phase-out of traditional flood coolants has become an imperative strategy, motivated by three critical factors: minimizing ecological footprint, ensuring workplace safety, and optimizing operational efficiency. This shift finds a natural ally in ultrasonic machining—a technology that embodies green manufacturing through its low-energy micro-vibration material removal, absence of chemical additives, and inherent dust and noise suppression.

Modern green machining solutions directly respond to the limitations of conventional coolants, which often result in costly waste treatment, environmental contamination, and compromised workshop safety. Implementing these advanced alternatives has become essential to establishing manufacturing operations that are ecologically responsible, safer for personnel, and economically sustainable. For years, Conprofe has dedicated itself to this very mission, specializing in the development and integration of Ultrasonic-Green Machining Solutions tailored to the demands of high-end, precision manufacturing worldwide.

At the forefront of this sustainable CNC transition are three pivotal Green Technologies:

• Minimum Quantity Lubrication (MQL) Technology: This technology precisely atomizes the mixture of compressed air and minimum lubricating oil to micron-sized aerosol particles. Aerosol particles rapidly penetrate the cutting interface to form a film for lubrication, which effectively reduces the friction coefficient and realizes efficient cutting lubrication. Its application is vast, covering metals like aluminum and steel. The primary advantages are a drastic reduction in lubricant consumption (by over 95%), elimination of coolant-related waste, a neater machining environment, and longer tool life.

• Supercritical CO2 Cooling Technology: This innovative method transforms supercritical CO2 fluid into a low-temperature medium (-78℃) for cooling, and the low-temperature medium will rapidly expand, absorb heat and form low-temperature dry ice particles and CO2 gaseous mixture to achieve rapid cooling and lubrication to the cutting area. It is exceptionally effective in machining thermally sensitive materials such as composites and certain superalloys. The key benefits include extremely low cutting temperatures, prevention of workpiece thermal damage, and a completely dry, residue-free machining process.

• Cryogenic Air Blasting Technology: This technique offers an innovative machining solution that utilizes cryogenic air (-10°C to -60°C) combined with minimal plant-based lubricant to replace traditional cooling lubricants. By blasting cryogenic air directly onto the cutting zone, it effectively reduces the cutting temperature and minimizes tool wear. The mixture of a small amount of lubricant with cryogenic air further enhances lubrication, suppresses heat generation and significantly extends tool life. It is ideal for applications where introducing any liquid or oil mist is undesirable, such as in the machining of certain composites or for preventing material adhesion.

As a leader in advanced machining solutions, Conprofe has strategically integrated these three green technologies into a versatile and powerful portfolio. A key differentiator is their seamless compatibility with Conprofe's Ultrasonic Machining Systems. Ultrasonic machining is a process inherently aligned with the concept of green manufacturing. It utilizes high-frequency micro-vibrations to achieve material removal through micro-fracturing, characterized by minimal machining force, low energy consumption, and reduced material waste. By substituting cutting oil with water-based fluids, it fundamentally avoids chemical pollution, hazardous dust, and noise, realizing environmentally friendly processing. This Ultrasonic-Green synergy can be harnessed across a range of Conprofe's CNC platforms, including Ultrasonic-Green Engraving and Milling Centers, Dual Ultrasonic-Green 5-Axis Gantry Machining Centers, and Ultrasonic-Green Vertical 5-Axis Machining Centers. The integrated system delivers unparalleled performance, significantly reducing overall machining costs while enhancing output quality. The consolidated machining advantages are profound: lower cutting temperature, a neater machining environment, longer tool life, better surface quality, and higher machining accuracy.

Conprofe's technologies are delivering tangible results across aviation applications:

• In aviation industry, when cutting Nomex honeycomb and carbon fiber composites, Cryogenic Air Blasting Technology effectively carries away cutting heat, mitigating material damages, and eliminating the risk of thermal modification to the matrix resin.

• For the grinding of alumina ceramic blisk, Supercritical CO2 Cooling Technology successfully lowers the cutting temperature, enabling rapid cooling of the tool and machining area, which significantly extends tool life.

• In the machining of new-generation superalloy blisks, the simultaneous application of Ultrasonic Machining, MQL Technology, and Supercritical CO2 Cooling Technology effectively minimizes chatter on the thin-walled blade tips. This results in finer surface patterns, superior contour accuracy, and a dramatic improvement in surface roughness—from Ra 0.930 µm to Ra 0.408 µm, a 56% reduction—which substantially shortens subsequent polishing time.

The future of manufacturing is green and efficient. By leveraging Conprofe's portfolio of sustainable technologies, industries can achieve remarkable environmental and economic gains, proving that sustainability and high performance are not just compatible, but mutually reinforcing.