Hey there! I’m working for a combined milling and turning supplier, and today I wanna chat about the feed rate range for combined milling and turning. It’s a pretty important topic, especially if you’re into machining or looking to get some parts made. Combined Milling and Turning
First off, let’s understand what feed rate is. In simple terms, the feed rate is how fast the cutting tool moves along the workpiece during the machining process. For combined milling and turning, we’re talking about a process that combines the features of both milling and turning operations. This allows for more complex part geometries and can lead to higher efficiency and better precision.
The feed rate range for combined milling and turning can vary quite a bit depending on several factors. One of the major factors is the material of the workpiece. Different materials have different properties, such as hardness, toughness, and machinability. For example, if you’re working with a soft material like aluminum, you can generally use a higher feed rate compared to a hard material like stainless steel.
Aluminum is a popular choice in many industries because it’s lightweight and relatively easy to machine. For aluminum, the feed rate can range from around 0.1 mm/rev to 0.5 mm/rev in turning operations. In milling, the feed per tooth can be anywhere from 0.05 mm/tooth to 0.2 mm/tooth. These values can be adjusted based on the specific grade of aluminum and the type of cutting tools you’re using.
On the other hand, stainless steel is a tougher nut to crack. It’s more resistant to cutting, and you need to be more careful with the feed rate. In turning, the feed rate for stainless steel might typically be in the range of 0.05 mm/rev to 0.2 mm/rev. For milling, the feed per tooth could be around 0.02 mm/tooth to 0.1 mm/tooth. The reason for these lower feed rates is to prevent excessive tool wear and to ensure a good surface finish on the workpiece.
Another factor that affects the feed rate range is the type of cutting tool. Different cutting tools are designed for different applications and materials. Carbide cutting tools, for example, are very popular because they can withstand high temperatures and offer good cutting performance. They can generally handle higher feed rates compared to high – speed steel (HSS) tools.
Carbide inserts are often used in combined milling and turning operations. For roughing operations with carbide inserts, you can use a relatively high feed rate to remove a large amount of material quickly. In turning, a feed rate of 0.2 mm/rev to 0.5 mm/rev might be used for roughing. In milling, a feed per tooth of 0.1 mm/tooth to 0.3 mm/tooth could be appropriate.
However, when it comes to finishing operations, you’ll want to reduce the feed rate to get a smooth surface finish. For finishing with carbide inserts in turning, the feed rate might be lowered to 0.05 mm/rev to 0.15 mm/rev. In milling, the feed per tooth could be around 0.02 mm/tooth to 0.08 mm/tooth.
HSS tools are still used in some cases, especially for smaller operations or when cost is a major concern. But they have limitations in terms of the feed rate they can handle. For HSS tools in turning, the feed rate might range from 0.03 mm/rev to 0.15 mm/rev. In milling, the feed per tooth could be 0.01 mm/tooth to 0.06 mm/tooth.
The machine tool itself also plays a role in determining the feed rate range. Modern machine tools are often more advanced and can handle higher feed rates. They have better rigidities and more precise control systems. If you have a high – end CNC machine for combined milling and turning, you can take advantage of its capabilities to use higher feed rates within the limits of the material and cutting tool.
For example, a high – performance CNC lathe with a good spindle and control system can support a wider range of feed rates. It can allow you to increase the feed rate gradually to maximize the machining efficiency while still maintaining the quality of the workpiece. Some CNC milling machines can also offer high – speed machining options, which enable higher feed rates for both roughing and finishing operations.
Let’s talk about the cutting depth as well. The cutting depth is related to the feed rate. Generally, if you increase the cutting depth, you’ll need to decrease the feed rate. This is because a larger cutting depth means the tool is removing more material at once, and if the feed rate is too high, it can put too much stress on the tool and the machine.
In combined milling and turning, a common approach is to start with a larger cutting depth and a relatively lower feed rate for roughing to remove the bulk of the material. Then, for finishing, you reduce the cutting depth and adjust the feed rate to get the desired surface finish. For example, in turning, for roughing, you might use a cutting depth of 2 – 5 mm and a feed rate of 0.2 – 0.4 mm/rev. For finishing, the cutting depth could be around 0.1 – 0.5 mm, and the feed rate would be reduced to 0.05 – 0.15 mm/rev.
In milling, for roughing, a cutting depth of 1 – 3 mm and a feed per tooth of 0.1 – 0.3 mm/tooth might be used. For finishing, the cutting depth could be 0.05 – 0.5 mm, and the feed per tooth would be around 0.02 – 0.08 mm/tooth.
Now, why is it so important to get the feed rate range right? Well, if the feed rate is too low, it can lead to longer machining times, which means higher costs. On the other hand, if the feed rate is too high, it can cause excessive tool wear, poor surface finish, and even damage to the machine tool.
As a combined milling and turning supplier, we have a lot of experience in finding the optimal feed rate range for different jobs. We take into account all the factors I mentioned above – the material, the cutting tool, the machine tool, and the cutting depth. We use our knowledge and expertise to ensure that our customers get the best results in terms of efficiency, precision, and cost – effectiveness.
Whether you’re in the automotive industry, aerospace, or any other field that requires high – precision parts, we can help. We have a team of skilled machinists who know how to adjust the feed rate and other machining parameters to meet your specific requirements.
If you’re looking for a reliable combined milling and turning supplier and want to discuss your project, don’t hesitate to get in touch with us. We’re more than happy to have a chat about your needs, help you determine the right feed rate range for your parts, and provide you with a competitive quote.
Investment Casting Parts References:
- Machining Handbook, various editions
- Technical papers on combined milling and turning from industry conferences
Simons Technology (Foshan) Co., Ltd
We’re well-known as one of the leading combined milling and turning manufacturers and suppliers in China. If you’re going to buy high quality combined milling and turning made in China, welcome to get quotation from our factory. We also accept customized orders.
Address: No.7 Jinfu Area, Lixi Honggang Industrial Zone, Dali Town, Nanhai District, Foshan City, Guangdong, China
E-mail: sales@simons-tech.com
WebSite: https://www.simons-tech.com/
