What is the use of Three wire method ?
The accurate measurement of thread pitch diameter, which may be perfect as to form and lead, presents certain difficulties which result in some uncertainty as to its true value. The adoption of a standard uniform practice in making such measurements is, therefore, desirable in order to reduce such uncertainty of measurement to a minimum. The “three – wire method” of measuring thread pitch diameter, has been found to be the most generally satisfactory method when properly carried out, and is recommended for universal use in the direct measurement of thread plug and thread setting plug gauges.
How to Calculate Pitch of Screw USA Standard Taper?
Pitch of Screw USA Standard Taper calculator uses Screw Pitch Taper Pipe = (Pitch Diameter of Taper Pipe-1.00049*Micrometer Reading of Taper Pipe+3.00049*Wire Diameter of Taper Pipe)/0.86603 to calculate the Screw Pitch Taper Pipe, The Pitch of Screw USA Standard Taper formula is defined as the distance from a point on the screw thread to a corresponding point on the next thread measured parallel to the axis of the thread. It is represented by the letter p. (p=1/n). Screw Pitch Taper Pipe is denoted by Ptp symbol.
How to calculate Pitch of Screw USA Standard Taper using this online calculator? To use this online calculator for Pitch of Screw USA Standard Taper, enter Pitch Diameter of Taper Pipe (Dtp), Micrometer Reading of Taper Pipe (Mtp) & Wire Diameter of Taper Pipe (Gd) and hit the calculate button. Here is how the Pitch of Screw USA Standard Taper calculation can be explained with given input values -> 3113.568 = (0.007001-1.00049*0.0118+3.00049*0.0025)/0.86603.