목공 프로젝트에서, 나선형 CNC 라우터 비트에는 세 가지 절단 유형이 있습니다.: 업컷, 다운컷, 및 압축 절단. 업컷 및 다운컷 비트는 홈 방향이 다르기 때문에 다양한 절단 효과를 얻을 수 있습니다..
그렇다면 목공인들은 자신이 원하는 절단 효과에 따라 절단 유형을 어떻게 선택해야 할까요?? What is the difference between upcut router bits and downcut router bits? 이 기사에서는, we will explain it to you one by one, so that you can easily make your own decision next time when you choose a spiral router bit.
Downcut Router Bits
Downcut bits have grooves that go downward from left to right.
Among the three cutting types, downcut router bits require a relatively slow cutting speed because it takes more time to remove these chips. If the downcut bit is worked at a very fast speed, the accumulation of wood chips in the groove may cause overheating and even damage the bit.
Downcut bits are suitable for creating shallow grooves or mortises in thin and flexible materials such as veneer or laminate to prevent tearing of the top surface. 또한 성형에도 이상적입니다., 트리밍 및 패턴 커팅.
하지만, please note that the bottom edge may wear out due to the chips moving downward and being constantly recut.
Up-cut Router Bits
A router bit with a left-to-right upward direction, as opposed to a down-cut bit, is an up-cut bit.
With this left-to-right upward design, wood chips are removed upward and outward from the cut, 공작물의 깨끗하고 매끄러운 바닥 표면을 남겨 둡니다.. 동시에, they can achieve faster cutting speeds due to the efficient removal of chips. 게다가, up-cut bits can stay sharp longer due to the lack of accumulation of chips and dust in the cut.
하지만, up-cut spiral bits cause wear on the top surface of the workpiece, so they leave a rough top surface and a clean bottom surface. This type of drill bit is often used to make mortises and deep grooves or blind holes.
Compression Bits
Compression bits combine both up-cut and down-cut, hence the name “compression”.
It is easy to create smooth and clean edges on both sides of a workpiece using a compression bit. The up-cut portion pulls out chips quickly, and the down-cut portion smoothes the top and bottom edges.
Compression drill bits are more expensive than the other two types due to their complex design. Compression drill bits are perfect for producing clean surfaces on both sides when cutting materials such as plywood, 겉치장, and laminate. If you have enough budget and know how to use it properly, compression drill bits are definitely your best choice for producing clean edges.
