How to connect Al to Cu wire
Aluminum wire is bad. It will prank call your friends, and steal your girlfriend.  

No seriously, you just need to make sure you are terminating it properly and use splices specifically designed for aluminum wire connections.  These must have a rating of CO/ALR (COpper/ALuminum Revised). 

Now to go deeper into the ooga-booga-scary aluminum wire.  Where it got into big trouble was trying to use it for the thin wires used in outlet and lighting circuits (14/12 AWG copper, 12/10 AWG aluminum).  This was originally done due to the scarcity of metals in post-WWII reconstruction.  They made hasty choices of aluminum alloy and termination design, and it didn't work and caused fires.  They solved it three ways: 


improved the terminations (now CO-ALR). 
improved the aluminum alloy (banned AA-1350 and now require AA-80xx)
Stopped using it for the thin stuff (12/10 AWG) since there isn't much cost savings. 


I prefer copper up to 6 AWG/50A, and aluminum above that.  

You might consider replacing your electric cable to your range, for a totally different reason: you probably have 3-wire (hot-neutral-hot), no ground. Any problem with the neutral wire will electrify the chassis of the range and kill you.  It happens.  Ground can be retrofitted separately, but why not seize the chance to dump the archaic AA-13xx cable.