Here's a website that translates names into Japanese.http://server73.totalchoicehosting.com/~yourname/transadv.php I put in the sounds Ren & gi and it gave me the the symbols with the meaning of love & righteous. I dont know if thats what your looking for, but try it out.
I'm confused. I have found the kanji for ren=train and love and I have found the kanji for shi=scholar and master. I like the forge and samurai explanation, but I can not find that.
錬氏 or more often 錬士。 I've never seen the first one actually used, but the second one comes up in the Dai Nihon Kendo Renmei.