Page 4 - MetalForming July 2017

MetalForming
July 2017 | Volume 51 — Number 7 Cover Story
Features
81 Custom Spring DesignfromAtoZ
When designing a custom spring, consider several key factors including the spring’s service environment and desired cycle life, and its installation location. The three primary design parameters: wire size, relaxed free length and solid height.
Commentaries
Editorial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Our Industry’s Strengthening Pulse
Brad F. Kuvin
The Science of Forming . . . . . . . . . . . . . . . . . 84
Study of 1977 Auto Bumper Quite Revealing
Stuart Keeler
Tooling by Design . . . . . . . . . . . . . . . . . . . . . . 86
Blank-and-Draw-Process Problems–Part Two
Peter Ulintz
You and The Law . . . . . . . . . . . . . . . . . . . . . . . 88
Major Citations Reversed When Evidence of Compliance Excluded
Douglas B. M. Ehlke
Backtalk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Take Advantage of the Opportunities
Louis A. Kren
Departments
News Fronts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PMA’s 75th Anniversary
S1 LookingBack, Looking Forward
S2 75 Years Strong
Constantly evolving and meeting challenge upon challenge to promote and propel our industry, the Precision Metalforming Association celebrates its diamond anniversary.
S22 2017andBeyond
A futurist and expert in trends and innovation examines what he refers to as the “modern-day leadership dilemma”—heading toward the Jetsons when you have a bunch of Flintstones around!
S36 AreDigitalTechnologies for Everyone?
Features
18 Controls: Don’t Disable!
Investing in press and line controls leverages high technology to monitor, operate and optimize presses and entire lines. But the investment is wasted when users—and there are plenty—turn off key control functions or inputs.
22 Tips for Improving Plasma- Torch Consumable Life
Follow the advice presented here to optimize the life of your plasma-arc-cutting consumables— swirl ring, retaining cap, electrode, nozzle orifice and more—and ensure optimum and consistent cut quality.
24 Mired in Inspection
Documentation?
This job-shop manufacturer of primarily medical products sure is, but by sharpening its ERP- software sword, the pain is minimized. Among critical ERP-managed functions: incoming material qualification and inventory monitoring, shop-floor timekeeping (with alerts), and contract review.
26 Precision Machining Ensures
Precision Fineblanking
Feintool delivers on speed, quality and profitability with precision VMCs.
Tech Update . . . . . . . . . . . . . . . . . . . . . . . . . . . Software for Manufacturing . . . . . . . . . . . . . . Materials & Coatings. . . . . . . . . . . . . . . . . . . . Spotlight on PMA . . . . . . . . . . . . . . . . . . . . . . 91 Classifieds . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Ad Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
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2 MetalForming/July 2017
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