CNC End Mill

您可以使用 CNC 铣床创建的对象有许多不同的因素，但最大的贡献者将是您的 CNC 立铣刀。在最基本的层面上，立铣刀就像钻头，但它们不仅可以垂直钻孔，还可以水平切割，并且有多种形状因素可以为特定材料获得最干净的切割。有些仅用于塑料以防止过度加热，有些旨在防止木材碎裂或撕裂，有些则专为超精细的细节工作而设计。;

 

形状

From one end mill to the next, the most obvious difference you will find is that end mills come in many shapes and sizes. Some are thin and pointy, and others are wide and rounded. Some of the most common shapes you will find are fishtail (or flat), ball-nosed, and the bullnose, and each of these can be a straight cut or a tapered cut.

 

Size

Size is the biggest determination of what you can do with any given end mill. Large ones excel at grinding through a lot of material at once, but you don’t get a lot of detail out of your parts. With CNC milling, the radius of your end mill is the radius of any internal corner, so you will almost never have a perfectly square corner on the inside of a milled object. Smaller and smaller end mills can be used for each pass to clean up an edge and get the part to the final dimension and shape. ;

 

Straight vs. Tapered

There are generally two forms of end mills: straight and tapered. This is a choice based on the geometry of your finished part because a tapered end mill won’t be able to do all the same things as a straight end mill, and a straight end mill may not be the most efficient choice. By using a tapered end mill, the cross-sectional area is larger than a straight end mill of the same tip diameter, creating a much stronger end mill that is less likely to bend while milling. For perfectly vertical walls you will need to use a straight end mill as the taper just won’t reach. However for angled walls, using a straight end mill is not the most efficient, ideal choice.

 

Why Use a Single Flute End Mill?

刀具世界里有很多奇怪的野兽，还有很多不明显的物理。例如，许多机械师会知道更多的凹槽意味着更高的生产率，但某些材料，如铝，需要更少的凹槽——通常是两个或三个。如果是这样的话，什么时候使用 1 刃立铣刀才有意义？有没有时候尽可能少的长笛数量是个好主意？

现在让我们以 CNC 路由器为例。; 假设它有一个转速为 24,000 rpm 的主轴，但它不会比它慢