Hi. Trailing knife or trailing vibrating knife. But ££££s, vacuum or electrostatic bed to holdthe card. A nice low tech way is a press knife as per shoemaking. The easy way to explain is to imagine an enormously sharp pastry cutter. They will chomp through leather, card, 8 sheets thick at a time easy.You can still get knives made to card patterns or Cad drawings at:
http://www.woodash.co.uk/Pressknives.html
The cost of a quite complex knife can be £100, only really worth it if you want a alot but, last forever and you can then cut 1000s in just a few hours. You need a press of course, depending where you are you may be able to borrow one at a college of friendly shoe factory (rare).
Tom