Diverse Range of Negative Q Series Inserts

Each type of Q series insert has unique advantages depending on the specific machining task. Here’s an overview of the different insert types and their optimal applications:

		QF– finishing QF for finishing of general steel and alloy steel. Curved edge, sharp cutting edge, good chip control and fine surface finish due to curved edge.
		QM– semi-finishing QM for semi-finishing of general steel and alloy steel. The design of step and wavy boss widens the range of chip breaking.
		QR- roughing cutting action QR for rough cutting action of carbon steel,cast steel and alloy steel. Variable rake angle and land provides enough edge sharpness and strength at different depth of cut.
		QH- heavy cutting action QH for heavy cutting action of carbon steel, cast steel and alloy steel. Variable land and progressive chipbreaker space, generating lower cutting force. Straight edge line with reinforcement balances strength and cutting action.

These inserts are engineered to optimize machining processes across a variety of industries that require high precision and performance.

Matching Brand

8 CVD coating grades to cover common steel processing conditions

GPT6110、GPT6120、GPT6130

GP1105、GP1120、GP1225、GP1130、GP1135

FAQ (Frequently Asked Questions)

Q1: Why are Negative Q series inserts so effective for steel machining?

A1:Negative Q series inserts offer optimal tool life, superior chip control, and excellent cutting efficiency. They are tailored for various machining conditions, from finishing to heavy-duty cutting, ensuring top performance across all applications.

Q2: Are Q series inserts suitable for materials other than steel?

A2:Yes, Q series inserts are also suitable for cast iron and alloy steels, although they are specifically designed to excel in steel machining.

Q3: How can I maximize the life of my Q series inserts?

A3:To prolong the life of your Q series inserts, ensure the correct cutting conditions, maintain a consistent feed rate, and use effective cooling methods such as dry cutting or minimum coolant.

Q4: Which Q series insert is best for precision finishing?

A4:QF inserts are specifically designed for finishing and semi-finishing applications, offering sharp edges for smooth finishes and high-precision cuts.

Conclusion:

The Negative Q series inserts are the ultimate solution for improving machining performance in steel processing, offering unmatched versatility and durability. Whether you’re performing finishing, semi-finishing, rough cutting, or heavy cutting, these inserts ensure high productivity and superior surface quality. With the right insert, you can enhance efficiency, reduce tool wear, and achieve excellent results in steel machining.

References

• Mavrikios, D., Papanikolaou, A., & Chryssolouris, G. (2007). Design and performance evaluation of cutting inserts in high-speed
• Zhang, Y., & Wang, Y. (2019). Effectiveness of CVD-coated inserts for enhancing the performance of steel cutting tools. Journal of Materials Processing Technology, 267, 93-102.
• Kumar, R., & Prakash, P. (2018). Machining of high-strength steels: Strategies for roughing and heavy cutting operations. International Journal of Machine Tools and Manufacture, 129, 15-22.
• Silva, A., & Ribeiro, A. (2017). Effect of cutting parameters on tool wear and surface integrity in turning of 20MnCrS5 steel. Procedia CIRP, 60, 155-160.

processing scope

QF for finishing of carbon steel and alloy steel.

QM for semi-finishing of carbon steel and alloy steel.

QR for roughing cutting action of carbon steels, cast iron and alloy steels.

QH for heavy cutting action of carbon steel, cast iron and alloy steels.

QF Inserts: Precision Finishing with Unmatched Surface Quality

The QF insert is specifically designed for finishing and semi-finishing tasks, where surface finish quality is paramount. These inserts feature sharp edges and curved geometries that reduce cutting forces and help achieve smooth, high-quality finishes. Mavrikios et al. (2007) found that inserts with curved cutting edges such as those in the QF series not only improve surface quality but also increase tool life by reducing wear.

QM Inserts: The Ultimate Versatile Solution for Semi-Finishing and Rough Machining

The QM insert offers unparalleled versatility for semi-finishing and rough machining applications. It performs well in medium cutting conditions, making it an ideal solution for multi-purpose machining. The QM inserts provide an optimal balance between strength and cutting efficiency, ensuring consistent performance even under demanding conditions. These inserts are capable of handling a wide range of materials, including carbon steel, stainless steel, and alloy steel.

QR Inserts: Handling the Toughest Rough Cuts with Confidence

QR inserts are designed for heavy-duty rough cutting operations, particularly when large material removal rates are required. These inserts feature variable rake angles and large chip pockets, making them ideal for deep cuts in tough materials such as cast iron and alloy steels. The insert’s ability to handle high cutting forces and manage chip flow ensures consistent, high-performance cutting. Kumar et al. (2018)[3] found that QR inserts excel at edge stability, which is crucial during rough cuts in challenging materials.

QH Inserts: Mastering Heavy Cutting with Precision and Durability

For the most demanding machining operations, QH inserts provide superior strength and durability. These inserts are built for heavy cutting, specifically designed for high-strength steel and cast iron machining. Equipped with progressive chipbreakers and reinforced cutting edges, the QH inserts excel at handling large depths of cut and high cutting forces without sacrificing performance. Silva et al. (2017)[4] emphasized that QH inserts can withstand extreme conditions, reducing tool wear and improving machining efficiency.

Example of steel turning insert processing (gearbox gear)

Practical Application: Steel Machining Using Q Series Inserts

Let’s explore how Q series inserts are applied in a real-world scenario. In gear manufacturing, the QH insert (WNMG080408-QH) was used for rough cutting of 20MnCrS5, a high-strength alloy steel:

How to Select the Ideal Insert for Your Steel Machining Tasks

Choosing the right Q series insert depends on the type of operation you’re performing. Here’s a quick guide to selecting the appropriate insert:

1. QF Inserts: Best for high-precision finishing operations, where smooth surface quality is critical.
2. QM Inserts: Ideal for semi-finishing and rough machining, providing flexibility and efficiency.
3. QR Inserts: Designed for rough cutting in high-material removal operations, especially in tough materials like cast iron.
4. QH Inserts: Built for heavy-duty cutting in high-strength steels and alloys, ensuring long-lasting tool performance.