Stephen Mraz

Senior Editor,
Machine Design

Steve serves as Senior Editor of Machine Design.  He has 23 years of service and has a B.S. Biomedical Engineering from Steve was a Flight officer in the U.S. Navy. He is currently responsible for areas such as aerospace and medical.

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Mass Spectrometry Leads to Quicker, Safer Biopsies
A new biopsy method may cut down on time to diagnosis.
New Flange Coupling Tackles Heavy-Duty Tasks
A new coupling makes it simpler to connect shafts.
Diaper Compound Boosts Power of Microscopes
Getting biological samples to absorb water makes details larger and easier to see with a microscope.
U.S. Exports and Imports of Fasteners Spike

After shrinking in February, imports and exports of iron and steel fasteners jumped in March as Asian imports rebounded, according to figures from Zepol Corp.

Squeeze Handle Permits One-Hand Actuation
The AC-50 Squeeze Handle Actuator enables one-hand squeeze operation.
Enclosure Cooler Packs More Cooling in Compact Package 3
TECA Crop.’s AHP-690- thermoelectric cooler keeps equipment and instruments at peak operating temperatures inside enclosures.
Friction Stir Welding Now Suitable for High-Volume Auto Assembly 2
Engineers from the Pacific Northwest National Laboratory (PNNL) have improved friction stir welding (FSW) so that it can now join aluminum sheets of varying thicknesses, a key capability for making welds that are strong in places where needed, yet light overall.
Silicone Adhesive Works on Automotive Electronics
Silicone adhesive works with a range of substrates.
Off to the Races: Indy 500 Winners Through the Years
Here’s a look at some of the memorable cars and drivers that have won the Indy 500 since the event began more than 100 years ago.
Heavy-Duty Caster Carries 50-Ton Loads
Engineers and technicians at Hamilton Caster (, Hamilton, Ohio, recently designed and built four 100,000-lb capacity casters for a federal contractor....
Replacing Testing on Sports Gear with FEA
Simulation and FEA could replace physical testing—even for events that happen in milliseconds.
Inductive Linear Position Sensor Handles Off-Road Challenges
The LR-27 series of linear variable inductive transducers from the Alliance Sensor Group, Moorestown, N.J., was designed to be rugged enough for use in off-road vehicles
Pallets Move on Customizable Conveyor 3
The new 2200 SmartFlex flexible chain conveyor platform from Dorner Mfg. can now be equipped with pallet-handling options to provide accurate positioning and routing of parts for assembly, robotic, and inspection applications.
Quarter-Turn Fasteners Prevent Lost Hardware
D5 DZUS panel Line quarter-turn fasteners from Southco use flare-in studs with all the fastening hardware firmly attached.
NASA Robot Spawns Biomedical Spinoffs
Humans doing difficult, repetitive tasks or those who need assistance with movement may soon get a helping hand, thanks to robotic technology developed to serve astronauts in space.
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