Excerpt from the Modern Machine Shop October 2009 article by Peter Zelinski
Through direct CNC machining of molds and cores, this supplier of cast and machined parts skips the pattern-making step that would otherwise be fundamental to casting. The result is weeks of lead-time savings for complex parts that are needed in a hurry.
CNC machining is a proven technology for holding tight tolerances. Reg Gustafson of Clinkenbeard knows this. Clinkenbeard is a supplier of short-lead-time castings in Rockford, Illinois. Mr. Gustafson says the company's recognition of the basic effectiveness of machining ultimately showed it the way to respond, back when additive technologies for making molds and cores first began to succeed.