Advantages of machining cast iron turning inserts TNMG160404-HK
Cast iron is a common but not easy to deal with material.
It is hard, brittle, and has a high carbon content. It is not only easy to produce intermittent cutting during processing, but also often accompanied by problems such as sand holes and pores.
Therefore, if you want to achieve the ideal effect when processing cast iron, it is very important to choose the right blade.
At this time, TNMG160404-HK turning blade comes in handy.
It is a model designed specifically for cast iron processing, with multiple advantages such as wear resistance, anti-collapse, and smooth chip removal.
What is TNMG160404-HK?
The model of this insert is as follows:
T: Equilateral triangle insert, three cutting edges
N: No back angle (0°), more rigid
M: Medium precision grade
G: With hole + double-sided grinding
160404: Side length 16mm, thickness 4.76mm, corner radius 0.4mm
HK: K stands for cast iron, and H is the chip breaker shape designed specifically for this material
In short, TNMG160404-HK is a carbide insert developed specifically for high-efficiency turning of cast iron, taking into account both strength and sharpness, and is suitable for roughing and semi-finishing scenarios.
TNMG160404-HK Advantages of Cast Iron Processing
1. Excellent wear resistance and longer blade life
Cast iron is a highly abrasive material, which requires high wear resistance of the blade. TNMG160404-HK is made of fine-grained carbide, and the surface is often equipped with CVD coating (such as TiCN + Al₂O₃). The overall Vickers hardness (HV) can reach more than 1800, which can easily cope with difficult processing conditions such as gray cast iron and ductile iron.
2. Strong anti-breakage, suitable for intermittent cutting
Due to the brittleness of cast iron itself, many workpieces have rough and uneven surfaces and even contain sand holes, which can easily cause blade breakage. The triangular structure of TNMG allows the three blade tips to be evenly stressed and rigid, and the balanced design of the HK chip breaker makes it stable in intermittent cutting and not easy to break.
3. Economical and practical, high cost performance
Each TNMG160404-HK blade has 6 usable cutting edges (double-sided triangle), which has obvious advantages in cost control compared to some blades that can only use 2 or 4 cutting edges. It is suitable for batch orders and long-term production.
What else can TNMG process besides cast iron?
Although the TNMG160404-HK is optimized for cast iron, TNMG inserts in this series are also widely used in the following materials:
| Material Type | Applicability | Recommendation |
| Grey cast iron HT250 | recommend | Long blade life and smooth cutting |
| Ductile Iron QT450 | recommend | Strong anti-collapse performance, clean chip breaking |
| Ordinary steel 45# | Available | You need to choose a material and coating version specifically adapted to steel |
| Copper, aluminum | Not recommended | The material is too soft, it is recommended to use a positive rake angle blade |
In short, the TNMG series is more suitable for machining materials with medium strength and heavy cutting load, especially cast iron.
Advantages of our factory: good products and more professional services
In the field of carbide blades, we have focused on it for many years and have accumulated rich experience in R&D and manufacturing. Not only the product itself, we pay more attention to the customer experience:
Own factory, quality control: from alloy powder to pressing, sintering, coating, grinding, the whole process is completed independently
Fast delivery, sufficient inventory: TNMG160404-HK and other main models are in stock all year round, and regular orders can be shipped on the same day
Support small batch customization: support OEM logo, packaging, special material non-standard size customization
Technical team support: recommend the most suitable material and parameters according to the customer’s working conditions to reduce the cost of trial and error
Rich export experience: products are exported to South America, Southeast Asia, the Middle East, Africa and other markets, and customers have given rave reviews
If you are looking for a turning insert that truly understands cast iron machining, TNMG160404-HK is your trustworthy choice.
