The planner's 15 decisions
The process planner turns a design into a machine plan, and the plan is the biggest driver of cycle time and cost. The book breaks it into 15 functions, which fall into three groups: where the ply goes, how the courses run, how the machine moves. They compete, so planning is iterative, which is why it's being automated (CAPP).
Predict · at 2:24 in the video
Here's why the machine-motion decisions matter. Twenty courses, each a metre long, laid at twenty metres a minute, with five seconds of repositioning between courses. What fraction of the time is the head actually laying?
Only about a third. Laying takes sixty seconds. Moving between courses takes a hundred.
Automated Fiber Placement: Status, Challenges, and Evolution, Ramy Harik & Alex Brasington.
- Chapter 4, section 1.A
- Chapter 4, section 1.B
- Chapter 4, section 2
- Chapter 4, section 2.1
Simulations in this lesson are our own. Where the numbers are invented to show a mechanism, the video says so on screen.
