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The use of short cutting tools is the main feature of five-axis machining. Short tools will significantly reduce tool deviation, thereby obtaining a good surface quality, avoiding rework, reducing the amount of welding rod used, and shortening the processing time of EDM. When considering five-axis machining, the goals of using five-axis machining molds must be considered:
Use the shortest cutting tool possible to complete the processing of the entire workpiece. It also includes reducing programming, clamping and processing time but can get a more perfect surface quality.
As long as the workpiece cavity is not very deep (relative to the tool diameter), a three-axis tool path (2, 3, 5) is sufficient. If the workpiece cavity is very deep and has very narrow parts, it is not enough to use a pure three-axis tool path to complete the entire finishing. 이 경우, poor surface quality and long processing time ensue. 수치 1 is the case of a three-axis tool path. Here, the shortest tool must be very long in order to be able to machine all areas of the workpiece in the vertical direction.
3-axis machining path of short tool
수치 1, Three-axis machining path
When using a shorter tool, the spindle should be tilted to ensure that the special area of the workpiece can be processed. 3+2 axis machining is usually considered as setting a constant angle to the spindle. Complex workpieces may require many oblique views to cover the entire workpiece, but this will cause tool paths to overlap and increase machining time.
게다가, all the oblique views are difficult to accurately combine, so the workload of manual polishing will increase, 그리고 동시에, it will greatly increase the movement in and out, which often leads to surface quality problems and more tool movement.
수치 2, 3+2 axis tool pathFinally, programming in this way will interfere with each other and is time-consuming, and the sum of all views often cannot cover the entire geometry. 수치 2 demonstrates four workpiece views, but there is still an area in the center of the workpiece that cannot be covered. This area still needs an additional oblique view.
3+2 axis short tool machining path
수치 3, 5-axis tool path
5-axis short tool machining path
단점을 극복하기 위해 3+2 축 가공, 5축 동시 가공이 더 나은 선택일 수 있습니다., 일부 5축 공작 기계에는 금형 산업을 위해 특별히 설계된 일부 기능이 있다는 것은 말할 것도 없습니다.. 5축 연결 가공은 3개의 선형 축과 2개의 회전 축을 동시에 이동하도록 조정할 수 있습니다., 3축의 모든 문제를 해결한 3+2 축 가공. 도구가 매우 짧을 수 있습니다., 겹치는 견해가 없습니다., 처리 영역을 놓칠 가능성이 적습니다., 추가적인 수입, 수출 없이 지속적으로 가공이 가능합니다. (그림 참조 3).