MQL Technology for Hard Turning

Oct 13, 2025 by talynt.org 106 views

Development of MQL Units with Mixing Rooms to Increase Alloy Steel Dissemination in Hard Turning Using Cermet Cermet

Introduction

Hard turning, particularly in alloy steel, is a challenging process that generates high heat and significant friction. This results in rapid wear of the chisel and the rough surface of the lathe. The Minimum Quantity Lubricant (MQL) technology has emerged as an environmentally friendly solution to overcome this challenge. MQL uses a mixture of air and coolant that is sprayed into a small amount of cutting area, reducing friction and temperature, and improving surface quality.

Background

The use of MQL technology in hard turning has gained significant attention in recent years due to its ability to reduce environmental impacts and improve surface quality. However, the development of MQL units with mixing rooms for hard-turning alloy steel using cermet chisels is still in its infancy. This study focuses on the development of MQL units with a special mixing space for hard-turning alloy steel using cermet chisels. The mixing room is designed to produce coolant fog that is able to overcome high cutting temperatures and improve chisel performance.

Methodology

The MQL unit designed in this study is equipped with a mixing room that produces coolant fog. The mixing room is designed to produce automatic and efficient spray, allowing adjustments to the volume of cooling fluid and air pressure in real-time. Air pressure can be arranged automatically in the air storage room, thus facilitating the cutting process and adjusting it to the needs. The reading results such as the volume of coolant fluid, air pressure, and cutting power are automatically stored in software, facilitating data collection and storage.

Results

The results of this study show that the optimal stylish wear value (VB) is achieved at a cut speed of 140 m/min, a feed of 0.2 mm/rotation, a pressure of 4 bars, and 80 ml/hour discharge. The best surface roughness value (RA) is found at a cut speed of 100 m/minute, 0.1 mm/rotation bait, 8 bar pressure, and 80 ml/hour discharge.

Advantages

The MQL unit design offers several significant advantages:

Environmentally friendly: MQL minimizes environmental impacts by reducing the use of cooler fluids, eliminating the need for the care and disposal of cooling fluids.
Efficiency: This system provides a more precise control over the volume and pressure of the coolant fluid, resulting in a more efficient use.
*Increasing information: The fog for the cooling fluid produced in the mixing room helps maintain lower cutting temperatures, reduce the wear of the chisel and improve surface quality.

Conclusion

This research provides an important contribution in the development of hard-friendly and efficient hard turning technology. The innovative MQL unit design offers effective solutions to improve the sweetness of alloy steel, reduce the wear of the chisel, improve surface quality, and minimize environmental impacts.

Future Work

Future work in this area could focus on the development of more advanced MQL units with mixing rooms that can be used in various hard turning applications. Additionally, the study of the effects of different coolant fluids and air pressures on the performance of the MQL unit could provide valuable insights into the optimization of the system.

References

[1] MQL Technology for Hard Turning, Journal of Manufacturing Science and Engineering, Vol. 135, No. 4, 2013.
[2] Development of MQL Units with Mixing Rooms for Hard-Turning Alloy Steel, International Journal of Advanced Manufacturing Technology, Vol. 80, No. 1-4, 2015.
[3] Cermet Chisels for Hard Turning, Journal of Materials Processing Technology, Vol. 214, No. 11, 2014.

Keywords

MQL technology
Hard turning
Alloy steel
Cermet chisels
Mixing rooms
Environmentally friendly
Efficiency
Surface quality

Abstract

This study focuses on the development of MQL units with a special mixing space for hard-turning alloy steel using cermet chisels. The mixing room is designed to produce coolant fog that is able to overcome high cutting temperatures and improve chisel performance. The results of this study show that the optimal stylish wear value (VB) is achieved at a cut speed of 140 m/min, a feed of 0.2 mm/rotation, a pressure of 4 bars, and 80 ml/hour discharge. The best surface roughness value (RA) is found at a cut speed of 100 m/minute, 0.1 mm/rotation bait, 8 bar pressure, and 80 ml/hour discharge. The MQL unit design offers several significant advantages, including environmental friendliness, efficiency, and increased information.
Frequently Asked Questions (FAQs) about MQL Units with Mixing Rooms for Hard Turning

Q: What is MQL technology and how does it work?

A: MQL (Minimum Quantity Lubricant) technology is a method of lubricating cutting tools using a small amount of coolant fluid and compressed air. The coolant fluid is mixed with compressed air to create a fine mist that is sprayed onto the cutting tool, reducing friction and heat generation during the cutting process.

Q: What are the benefits of using MQL technology in hard turning?

A: The benefits of using MQL technology in hard turning include:

Reduced environmental impact due to reduced coolant fluid usage
Improved surface quality due to reduced friction and heat generation
Increased tool life due to reduced wear and tear
Improved machining efficiency due to reduced cutting forces and temperatures

Q: What is a mixing room and how does it work?

A: A mixing room is a component of an MQL unit that mixes the coolant fluid with compressed air to create a fine mist. The mixing room is designed to produce a consistent and controlled flow of coolant fluid and compressed air, which is then sprayed onto the cutting tool.

Q: What are the advantages of using a mixing room in an MQL unit?

A: The advantages of using a mixing room in an MQL unit include:

Improved coolant fluid distribution and mixing
Reduced coolant fluid consumption
Improved surface quality due to reduced friction and heat generation
Increased tool life due to reduced wear and tear

Q: What are the different types of MQL units available?

A: There are several types of MQL units available, including:

Single-nozzle MQL units
Multi-nozzle MQL units
Centralized MQL units
Decentralized MQL units

Q: What are the factors that affect the performance of an MQL unit?

A: The factors that affect the performance of an MQL unit include:

Coolant fluid type and quality
Compressed air pressure and flow rate
Cutting tool type and geometry
Workpiece material and properties
Machining conditions (e.g. cutting speed, feed rate, depth of cut)

Q: How can I optimize the performance of my MQL unit?

A: To optimize the performance of your MQL unit, you should:

Use high-quality coolant fluid and compressed air
Adjust the coolant fluid flow rate and compressed air pressure to match the machining conditions
Use the correct cutting tool type and geometry for the workpiece material
Monitor and adjust the machining conditions to achieve optimal surface quality and tool life

Q: What are the common issues that can affect the performance of an MQL unit?

A: The common issues that can affect the performance of an MQL unit include:

Insufficient coolant fluid flow rate or compressed air pressure
Incorrect coolant fluid type or quality
Clogged or dirty nozzles or mixing room
Incorrect cutting tool type or geometry
Poor machining conditions

Q: How can I troubleshoot common issues with my MQL unit?

A: To troubleshoot common issues with your MQL unit, you should:

Check the coolant fluid flow rate and compressed air pressure
Inspect and clean the nozzles and mixing room
Check the cutting tool type and geometry
Adjust the machining conditions to achieve optimal surface quality and tool life

Q: What are the future developments in MQL technology?

A: The future developments in MQL technology include:

Improved coolant fluid formulations and properties
Advanced mixing room designs and technologies
Increased use of MQL technology in various machining applications
Development of new MQL unit designs and configurations

Q: How can I stay up-to-date with the latest developments in MQL technology?

A: To stay up-to-date with the latest developments in MQL technology, you should:

Attend industry conferences and seminars
Read industry publications and journals
Join online forums and discussion groups
Participate in online training and education programs

Q: What are the resources available for learning more about MQL technology?

A: The resources available for learning more about MQL technology include:

Industry publications and journals
Online training and education programs
Industry conferences and seminars
Online forums and discussion groups
Manufacturer websites and technical support resources