Engineering team
COVID-19 Impact -Update 11/20
COVID-19 IMPACT
American Precision Products falls under the Defense Industrial Base Essential Critical Infrastructure category as defined by the Department of Homeland Security and will endeavor to remain open during this crisis (2020.03.20).
We are not accepting any unscheduled visits by vendors or customers at this time. Please Contact us to schedule any necessary appointments.
All visitors must be masked at all times.
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Typical Tool Building Sequence
Tooling schedules all follow a typical sequence. If the program requires further assembly or secondary operations they can increase the number of steps. These are the typical steps of our tool building programs.
Family Molds Benefits
A family mold is a mold which combines different part numbers into the same mold base. There can be multiple cavities of the different part numbers. Family molds can often have a mold building cost advantage over molds dedicated to a single part number. The are applicable to all our molding processes: Injection Molding,
Certificate of Conformance vs. Certificate of Analysis
Material Certification Types
APP uses the following terminology to address certification of materials.
Transferring Tooling to a New Molder
There are times when it is necessary to move tooling from one molder to another. Cost considerations, quality and delivery issues can force your hand to move tooling. Changing molding vendors is always fraught with hidden perils but there ways to mitigate your risks. Successful tooling transfers take careful planning to avoid production delays and unexpected costs.
Unit Inserts vs Free Stand Molds
Unit Insert Molds:
Mold inserts that utilize a standard, common frame. The molds mount into the frame by a variety of methods. The frame typically stays mounted in the molding machine. There are a few standards for unit inserts, Master Unit Die, Round Mate, are two common ones.
Tooling Specifications APP3760482
American Precision Products builds tooling in accordance to this internal standard: Tooling Specifications APP3760482 - 2016-06-06
Non-Export Tooling
What is non-export tooling?
Non-export tooling is tooling built outside of the US that cannot be transferred from the molder/mold maker. Tooling will often be built to non-standard specifications using local steels. It will have a stated tool life. At the end of the tool life a new tool will have to be purchased in order to produce more parts.
SPI Mold Finish Standards
The SPI mold finish ratings allow you to specify a general mold surface finish. The finish is a call-out on the mold itself, not on the finished product as the final part finish will vary with processing, plastic material, mold quality and mold steel. If you need exact texture matching of plastic parts then a more detailed standard is required.
CRITICAL CHARACTERISTICS AND KEY PRODUCT CHARACTERISTICS (KC)
The following article is reprinted with permission from the author from The American Society of Quality, , The Aviation/Space and Defense Division newsletter FALL 2003_Volume 35 Number 2. All rights reserved.
CRITICAL CHARACTERISTICS AND KEY PRODUCT CHARACTERISTICS (KC)
By Gene Barker, CQE, Certified Quality Manager, Boeing Technical Fellow, The Boeing Company
Engineering References
Engineering References
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