Expanded Metal Related Technical Articles

Specification Terms

Expanded metal opening structure diagram

SWD

Short Way of the Diamond. It is the length of the short axis way of the diamond, measured from the center of the joint to the center of the joint.

LWD

Long Way of the Diamond. It is the length of the long axis way of the diamond, measured from the center of the joint to the center of the joint.

SWO

Short Way of the Opening. The distance measured from the inside of the bond across to the inside of the bond SWD.

LWO

Long Way of Opening. The distance measured from the inside of the bond across to the inside of the bond LWD.

Bond

Intersection of two strands.

Strand Width

Amount of metal fed under dies to produce one strand.

Strand Thickness

Thickness of the base metal.

SWM

Short Way Measurement. Distance measured in the direction of expanded metal SWD.

LWM

Long Way Measurement. Distance measured in the direction of expanded metal LWD.

Manufacturing Terms

Flat Rolling

The raised expanded metal is fed into the cold rolling machine for flat rolling. The strand thickness after flattening is the same as the plate thickness.

Leveling

The newly produced expanded metal sheet has a certain curvature with the horizontal surface and needs to feed into the leveling machine to level it. Except for expanded metal gratings, all expanded metal sheets are leveled after expansion.

Edge Configuration

Condition of the edge of an expanded metal sheet. Usually refers to "open" (random) or "closed" (bond) diamond edges produced from shearing. Generally, expanded metal sheet is provided with open edge, if you need a closed edge, state it clearly on the order.

Expanded Metal Grating Load Capacity Term

Expanded metal grating uniform load and concentrated load diagram

Uniform Load (U)

A load uniformly distributed over the clear span of the expanded metal grating. In this case, all parts of the expanded metal grating are subject to the same load.

Concentrated Load (C)

A load distributed over a relatively small area, such as a pedestrian load.

Deflection (D)

The deviation in inches from the original plane when the expanded metal grating is placed under load.