You can't. The blade of a Fencing blade is made out of tempered steel, making it able to withstand a great deal of pressure, while bending, before breaking. The guard at the base is either made out of aluminum or titanium, and the handle is either rubber or a molded alloy.
(new person) but you could practice with wooden swords. theyre fun. xDChat with our AI personalities
Usually the blade is made of some kind of bendy metal, so when you lunge or stab your enemy it is clearly visible. The inside of the blade and some of the handle has wire inside to electronically sense the details of the hit (who hit first, where did you hit, etc.) And also, a fencing weapon is not tecnically a sword.