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GUTTER MACHINE TERMINOLOGY Entry end - the end of the gutter machine into which the material is fed, the end with the black curved guides; also called the front end or feed end. Exit end - the end of the gutter machine from which the finished gutter profile emerges, the end with the shear; also called the rear end or discharge end. Forming rolls - the rotating contoured dies used to both drive the material through the gutter machine and form the finished gutter profile; also called forming dies, rolling dies, rollers. Left side - when viewing from the entry end of the gutter machine, the side located to the left. Right side - when viewing from the entry end of the gutter machine, the side located to the right. Also called the “Box Side.” Station # - forming stations are numbered sequentially from the entry end to the exit end of the gutter machine. Crash – a condition in which any of the following problems may exist: • metal will not move through the gutter machine • metal is bent or crumpled against a fixed component in the gutter machine • metal is bunching up between forming stations • the drive train is seized PROFILE SPECIFIC TERMS: The profile is normally described as if it were being viewed from the entry end of the gutter machine as the material runs: Away from the house - profile is horizontally level, but curves toward the front, or box side, of the gutter. Downhill - the profile runs laterally strait, but curves downward as it exits the gutter machine; also referred to as having a crown in the profile. Into the house - profile is horizontally level, but curves toward the backside of the gutter. Left - the profile is horizontally level, but curves to the left as it exits the gutter machine. Right - the profile is horizontally level, but curves to the right as it exits the gutter machine. Twist - one end of the profile rotates away from the other end. Uphill - the profile runs laterally strait, but curves upward as it exits the gutter machine. MATERIAL/COIL RELATED TERMS: Camber - lateral curvature in coil stock - camber may lead to an inconsistent profile. Coil Set - longitudinal curvature induced in coil stock due to the winding or coiling process - excessive coil set may cause rippling in the gutter profile. Edge wave - a ripple-like effect on the edge of the material - often caused by the slitting process. Gauge - term used to reference the thickness of steel material per AISI thickness tolerance ranges - ex: 24 Ga = .0276" thick. Long-centered - center of the coil stock strip slightly longer than the edges - often results from the Heating and cooling process. Oil canning - a periodic pattern of buckling appearing on flat sections of a profile - often results from coil Set. Width - the lateral width of coil stock material - also called strip width or stretch-out. UNITS: Standard Units: in – inches (unit of length) lbs – pounds (unit of weight) ksi - pounds per square inch times one thousand (unit of pressure) oz – ounce (an indication of copper material thickness) Metric Units: mm – millimeters (unit of length) kg – kilograms (unit of weight) MPa – mega-pascals (unit of pressure)