What Engineers Should Know about Zinc-Nickel Coatings
Feb 26, 2017 · Zn-Ni coatings typically consist of 8 to 14 µ m layer of 12 to 16% nickel alloy next to the substrate topped by a 0.06 to 0.15 µ m trivalent passivate layer and a 0.5 to 4.0 µ m top coat layer ...
What’s the Difference Between Polypropylene Types?
Oct 1, 2018 · Paul Martin1. Polypropylene (PP) is a rigid crystalline thermoplastic used in everyday objects. There are various types of PP available: homopolymer, copolymer, impact, etc. Its mechanical ...
How to Choose the Right Control Method for VFDs - Machine …
Oct 23, 2014 · Motors account for at least half of the energy consumed in the U.S. Selecting the right control method for an application lets the motor run most efficiently while maximizing torque and overall ...
What’s the Difference between AC, DC, and EC Motors?
Aug 24, 2017 · Consequently, AC motors are less efficient than DC motors. In fact, the DC motor is 30% more efficient than AC motors due to the secondary magnetic field being generated from the permanent magnets ...
What’s The Difference Between FEM, FDM and FVM? - Machine …
May 31, 2024 · The finite-element, finite-difference and finite-volume methods—FEM, FDM and FVM, respectively—are numerical techniques used in engineering and machine design for solving partial differential ...
What’s the Difference Between Spur, Helical, Bevel, and Worm …
Jul 30, 2015 · Each impact makes loud noises and causes vibration, which is why spur gears are not used in machinery like cars. A normal gear ratio range is 1:1 to 6:1. Helical Gears. Helical gears have a ...
What’s the Difference Between the Sagittal, Coronal, and …
Feb 2, 2015 · The sagittal or lateral plane dives the body into left and right halves and is an x-z plane. Technically, the sagittal or median plane goes right through the middle between the body’s left and ...
Basics of Aerospace Materials: Aluminum and Composites
Jun 19, 2014 · Aluminum matrix composites: Metal matrix composites (MMCs) consist of metal alloys reinforced with fibers, whiskers, particulates, or wires. Alloys of numerous metals (aluminum, titanium ...
Planetary Gears: The Basics - Machine Design
Feb 28, 2023 · This article was updated Feb. 28, 2023. It was originally published March 1, 2000. Planetary gears can supply high levels of torque and high-speed reduction. They are also relatively compact ...
Cast Iron and Wrought Iron: What’s the Difference?
Jan 9, 2023 · Wrought iron is softer and more ductile than cast iron. It is also highly malleable and can be heated, re-heated and worked into various shapes. In fact, it gets stronger the more it is worked ...