Output of woodcut drawings that reduce the number of cutting processes for the same yield

Cutting Planner does not simply search for yield improvement. It outputs a cutting planner that reduces the number of cutting processes within the same yield (number of raw boards used). Therefore, the following indicators are quantified and evaluated in the search algorithm.

1. Yield
2. Drawings Qty
3. Continuous Parts arrangement
4. Parts straddling point
5. Number Of rotational processes
6. Max remaining material Size

We prioritize and output the results in this order, but there are quite a few trade-offs. This option lists multiple candidates and allows the user to select the one that best suits the site.

 

Percentage point at which yield reduction is acceptable

Set this option when you want to prioritize other items such as “Parts straddling point” even at the expense of yield.
If the maximum yield is 95% with a setting of 5 points, candidates up to 95-5=90% will be enumerated. Increasing the number will take more time.

 

Parts straddling point decrease search

Search is performed using an algorithm that focuses on reducing the number of parts straddling points. In addition to the normal search, it takes about twice as long.

 

Explanation of Terms　

Yield

Total area of parts / Total area of base board including trimming * 100

 

Drawings Qty

Fewer drawings with the same yield means that there are multiple cut patterns with the same drawings.
This leads to a reduction in the number of work steps due to the fact that boards can be cut in layers and the time required to check drawings can be shortened.

 

Continuous Parts Arrangement

This is the average number of parts of the same type in a continuous parts arrangement, excluding parts that are originally only one piece.
The more the same parts are lined up in a row, the less time is required for setups and the possibility of cutting in layers, which leads to a reduction in the work process.

 

Parts straddling point

When there are multiple pieces of the same part, they may be placed on different base plates. It would be fine if the parts are placed on the next base plate, but for the sake of yield, the parts are sometimes placed by skipping the intermediate figure. This is called “crossing the board” here. This is a numerical value that indicates how many locations there are. The more board straddles there are, the more parts are piled up in the process of cutting, which takes up more space and increases the number of setups, resulting in lower work efficiency.

 

Number Of rotational processes

The number of times the direction of the board is changed during the cutting process. The fewer the number of rotational processes, the less work is required.

 

Max remaining material Size

The largest size of the remaining material. The number is a percentage of the largest remaining material size.
If you want to place as much material as possible, select the record with the largest value.

 

Selecting Placement Candidates

Sorting the List

The numbers in [ ] in the list are ranked by excellence. You can sort by that rank by clicking on the column header. The same rank is sorted by key from the leftmost column to the right, excluding the column with the ⬆️⬇️ arrow.
Columns can be moved by dragging and dropping column headers to change the sort order.

 

The figure of the selected record will be displayed and printed.