Generating STEP-NC Files for a Circuit Board Milling System
Since G-codes have been proved limiting the modem manufacturing industry,ISO14649 was put forward.This paper presents a solution to generate ISO14649 files for circuit board milling.The process planning is given,and all the processes needed are contained in the ISO14649 file.Features and machining operations are identified for each process,such as the closed pocket having a General_closed_profile attribute and bosses,round holes,slots,the planar face,contour parallel strategy,contour bidirectional strategy and etc.The scenario of one feature with multi tools are put forward to promote the milling efficiency and an entity Combined_Machining_workingsteps is proposed.Besides,some other extensions are made,such as entities for representing circuit geometries in machining features.Algorithms for tool paths generation are demonstrated for contour parallel milling and bidirectional milling,where a new algorithm based on pixels is used.The new algorithm can be used in other functions such as detecting uncut regions.
STEP-NC ISO14649 Files Generation Tool Path Circuit Board Milling
Ke Wang Chengrui Zhang Rliang Liu Xianzhi Zhang
School of Mechanical Engineering, Shandong University, Jinan 250061, China School of Mechanical Engineering, Bath University, Bath, United Kingdom
国际会议
厦门
英文
1686-1691
2012-01-04（万方平台首次上网日期，不代表论文的发表时间）