Question

A cylindrical pin of \(25_{ + 0.010}^{ + 0.020}mm\) diameter is electroplated. Plating thickness is\({2.0^{ \pm 0.005}}mm\). Neglecting the gauge tolerance, the diameter (in mm. up to 3 decimal point accuracy) of the GO ring gauge to inspect the plated pin is ________.

Answer 1

Explanation:

In ring gauge, GO ring gauge is used to check upper limit of shaft/pin.

Maximum diameter of pin will be 25.020 mm. On electroplating, thickness increases on both sides so after electroplating maximum diameter

= 25.020 + (2.005) x 2

And since GO ring gauge is used to check upper limit of shaft, so, GO gauge dimension should be 29.030 mm.