'Dull punch and dies one side'

Dull punch and dies one side

S king from canada - Sat Nov 8 22:41:10 2008

Hello new to this site wondering if anyone has any ideas why i`m getting dull punches and dies just on one side when i punch 16 gauge galvanized.Machine is strippitt lvd global 30 automation.The punch is rectangle 3and 1/2 x 0.187rt it seems as though it isn`t going straight in the die the slugs on one side is being ripped instaed of cutting and is scraping one side of the die and punch.I`m not quite sure what some of the causes may be, i`m thinking holder, keways, or sleeve in the bore, it isn`t die clearence because i have tried die clearence 7, 9, 12 i don`t think its sharpening either because one side is cutting alright.I dont think it is turret bore wear either machine is only 6 yrs old, the alignment is alright and die bases have just been aligned.One side of the punch is going deeper then the other side any help is apprecitated.Thank You

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