Bend Radius

Hello,

    I am new the whole sheet metal world.Thecompany I work for is starting a fab shop and im trying to buildasmany parts in SW as i can before we start production. I knowthatthere will be alot of trial and error thing that will happen,and iwill learn alot  from this as well. I am looking foradvice orsome general rules that people go by when assigning ordetermininga bend radius. All our parts will be from 12-18 gamostcommonly. Thanks for the advise. SolidworksSheet Metal