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 Diameter Sharp V?
Pitch Diameter Sharp V calculator uses Pitch Diameter = Micrometer Reading-3*Wire Diameter+0.86603*Screw Pitch to calculate the Pitch Diameter, The Pitch Diameter Sharp V method refers to the diameter of a hypothetical cylinder that would pass through the points of contact between three precision wires and the V-shaped grooves of a screw thread. This measurement is crucial for determining the effective size of the thread where engagement with mating parts occurs, ensuring proper fit and functionality in mechanical assemblies. Pitch Diameter is denoted by D symbol.
How to calculate Pitch Diameter Sharp V using this online calculator? To use this online calculator for Pitch Diameter Sharp V, enter Micrometer Reading (M), Wire Diameter (G) & Screw Pitch (P) and hit the calculate button. Here is how the Pitch Diameter Sharp V calculation can be explained with given input values -> 7198.09 = 0.0082-3*0.0012+0.86603*0.003.