What’s the Difference Between Polypropylene Types?
WEBOct 2, 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 ...
Cast Iron and Wrought Iron: What’s the Difference?
WEBJan 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 ...
What’s the Difference Between Bearing, Shear, and Tear-Out Stress?
WEBJul 1, 2016 · Tear-out area is sometimes taken from the center of the bolt hole to the outside of the materialâ increasing the area by the radius of the hole. A more conservative approach is to take the area ...
What’s The Difference Between FEM, FDM and FVM? - Machine …
WEBMay 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 Engineers Should Know about Zinc-Nickel Coatings
WEBFeb 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 AC, DC, and EC Motors?
WEBAug 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 ...
How to Choose the Right Control Method for VFDs - Machine …
WEBOct 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 Are the Differences Between Sprung and Unsprung Weight?
WEBMay 17, 2016 · In simple terms, a vehicle’s sprung weight is supported by springs of one kind of or another (coiled springs, air springs, Belleville springs). Unsprung weight moves up and down with the wheels ...
Making the Right Shaft Connections - Machine Design
WEBAug 1, 2000 · During assembly, a key is inserted into machined keyways in the bushing and shaft to lock them together and prevent the shaft from rotating in the bushing, Figure 3. These keys are generally made ...
Engineering Essentials: What Is a Programmable Logic Controller ...
WEBJun 1, 2015 · A programmable logic controller (PLC) is an industrial solid-state computer that monitors inputs and outputs, and makes logic-based decisions for automated processes or machines. 1. The image ...