GO NO GO Thread Gauge| Understanding the inspection and standardisation of the gauges


One of the basic concepts of the thread gauge is related to providing a quick machinistic inspection by quality inspectors for verifying that the threads are present within the accepted tolerance. This ensures proper interaction with the mating part. The verification procedure involves the use of GO NO GO thread gauge

 
Certain aspects of go no go gauges
  • It is astounding to find out that there are certain cases when the threaded hole can accept the No Go thread gage instead of the go gauge. In order to comprehend the working of the Go No Go thread gauge, one must understand the difference between the no-go and the go thread gauge and the interaction between the two.
  • It is imperative to look at the go member of the thread gauges. The plug gage is required for measuring the minimum major diameter, flanks of the leads of the thread form and the measurement of the major and minimum diameters.
  •  Just like the no go gage, there is no need to check the minor diameter of the No Go thread feature. It is important to perform the check through means like dial bore gauge and pin gage.
  • The no go side of the thread requires performing of the check on just the pitch diameter in order to verify that it does not exceed the maximum condition.  The major diameter is not being measured in this situation. However, if it is measured the user would discover that the outer diameter or the no go thread is less than the Outer Diameter of the go thread gage. The no-go plug gauge is not required for the checking of the deepest points present in the thread. One can verify this just with the help of a Go gauge.
  • When the hole accepts the No go gage and not the go gage, it is because the cutting tool tips get worn out or chipped making the depth to become shallow. Moreover, the machinist assumes that the thread features must be opened to a greater extent in order to make an adjustment for cutting the thread larger. When the tip of the thread cutting tool gets worn, the thread pitch diameter gets overcut by compensating of the cutter. 

In order to find more on Go No Go thread gauge, and to buy standardized and high-quality gauge products, you may visit Gauges Tools.

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