Have you ever wondered what makes one vendor an absolutely terrific asset to your company and another vendor is just run-of-the-mill? Your vendor’s expertise in specific areas such as prototyping can be your insurance policy for new product success.
Once in a while all the time you thought you had to get a part out of design, through prototype, testing and into production just evaporated. The deadline for required production parts is approaching like a speeding train and you are in a real time-crunch. If you’ve been there before, you know it’s not where you want to be. So is there a way out when caught in this time dilemma?
Cost is relative. Something is either expensive, cheap or a good buy depending upon the value received. And so it goes with prototyping. Obviously every buyer, no matter what, wants to make sure that he gets the best value for the money invested. So in the prototyping process, how do you quantify value received?
As a designer of a part that will be die cast, you must switch gears mentally when it comes to prototype casting. Do not assume that everything will be accomplished in the casting process. The question that isn’t asked may be the one that trips up the project.
Cost is always a factor when it comes to prototyping. You know you need to produce a certain number of prototypes to test your design. Where do you draw the line on quantity? Is ten castings the right number or should you consider ordering fifteen or twenty just to be safe? Sometimes the limitation on quantity is drawn so tight that there aren’t enough parts to go around for proper testing and evaluation.
Sometimes people make choices that appear to be right but in retrospect find that the choice was made for the wrong reason. Over the years I have witnessed people choosing the wrong prototyping technology in an attempt to shorten their prototype lead-time.
Let us assume that the decision has been made that a prototype will be needed before releasing a part for production. So the next question is what type of prototype will you need? Or to phrase the question another way, What is the primary reason for creating a prototype?
A hog-out may, in certain situations, be a quicker way to create a prototype that will ultimately be die cast. But, like any other metal prototyping process hog-outs offer distinct advantages in certain cases and disadvantages in others. The following are simply guidelines to help the designer make a decision as to which process to choose for his specific situation.
There is no single prototyping process that is right for every application. But for every application there is a prototyping processes that is the most optimum solution. The critical question to ask yourself is: “What is the primary purpose or use of my prototype?”
