Rich Treasure Precision Industrial Blog

  Plug gauge, also known as  pin gauge , is a metrology tools which is used to measure the inner diameter of a hole that has been drilled or machined into a manufactured part, component, or assembly. This is an essential tool for quality control, and it enables the inspectors, machinists, manufacturing engineers, and others to quickly obtain a go/no-go decision about whether the inner diameter being measured falls within the specified dimensional tolerance. This measuring process is designed to allow accurate assessments to be made without the need for the production personnel to use an addition of more sophisticated and/or more expensive measuring instruments such as inside micrometers. In production operations, where a large volume of parts is being produced, plug gauges provide a rapid means of assessing the quality without taking time to perform actual hole diameter measurements and to set-up instrumentation.   When using  plug gauges , it is important to acknowl...

  Radius gages are fairly selfexplanatory and simple to use. These measurement tools are used on a number of different objects like hinges, tools, taps, and dies. They are used to measure existing radii, which is a critical operation when it comes to applications such as pattern making, precision machining, layout creation, and part inspection. In this article, we’ll explore the main applications in which a machinist would need a radius gage set and break down how to accurately use the tool. As always, we will wrap up with our top model...

  Metric pin gauge and imperial pin gauge 1. metric  pin gauge : specifications range 0.10mm ~ 50.00mm; interval: 0.005mm 0.01mm 0.02mm 0.025mm 0.05mm 0.10mm 0.50mm 1.00mm, etc.; accuracy ± 0.001mm ± 0.002mm ± 0.0005mm, etc. 2. inch pin gauge: specification range 0.011in ~ 1.000in; interval 0.001in; accuracy ± 0.001mm ± 0.002mm + 0.0025     The use of pin gauge.  Production of each product parts, first whether the tolerance size has been decided, in the upper limit and lower limit tolerance control range. Use GO (through gauge);  NO-GO gauge  (stop gauge) of the tolerance method of the gauge to implement management. For small production quantities, it is possible to reduce the cost of purchasing gauges and become proficient in their operation. It is easy to obtain the interchangeability of products, and it is very helpful in the field or in the inspection room for quality and yield improvement. In mass production, a gauge ...

What Is A Pin Gauge A pin gauge is a round bar with specific dimensions made of white steel, tool steel, ceramic, tungsten bearing steel, etc. or other materials with high hardness. It is a standardized inspection tool for holes. Appearance forms are smooth pin gauge, pin gauge with shank, titanium plated  pin gauge ,  ceramic pin gauge , and etc.. It is widely used in various fields of high precision technology such as electronic boards, circuit boards, molds and precision machinery manufacturing.   Pin Gauge Set   How to Use the Pin Gauge ​ 1. Check the measuring surface before use, there should be no rust, phi, scratches, black spots, etc.; the mark of the pin gauge should be correct and clear. 2. Remove the anti-rust oil, dust, adhesion, phi in the hole before measurement. 3. Wear gloves to operate the pin gauge according to the operation principle. 4.  The role of the pin gauge  must be in the cycle of calibration per...

  A ring gauge, also called a correction ring gauge, is a ring with specific dimensions and properties used to correct the insufficiency of a measuring tool. Ring gauges are limit gauges for shafts, mainly used to measure shafts or other external dimensions with a tolerance level of 1T6 to 1T16. The ring gauge cannot inspect the parts and crankshafts machined on the positive center, and the scope of application is limited. Ring gauges   can be divided into: smooth ring gauges, also called halo gauges, threaded ring gauges, parallel thread gauges, etc.; according to different uses and manufacturing standards, they can be divided into: standard ring gauge, SK standard ring gauge, German standard Ring gauges, pipe ring gauges, etc. According to the different manufacturing materials, there can also be ceramic ring gauges and metal ring gauges. Measurement uncertainty refers to the degree of uncertainty about the measurement results, which reflects the lack of understanding of the ...

  Plug gauges are available in several different types. These include: Go plug gauges No-go plug gauges Combination go/no-go plug gauges Go plug gauges and no-go plug gauges are called single-ended gauges and consist of a handle into which a precisely machined pin or shaft has been inserted (sometimes called a member) and which is used to verify an aspect of the dimensional tolerances of the hole. For single-ended gauges, they are usually offered in pairs with one go gauge and one no-gauge gauge. In its use, a go plug gauge is designed to test the minimum dimensional limit of the hole (i.e. the lower tolerance of the hole ’ s diameter) which represents the maximum amount of remaining material on the part or workpiece. For an acceptance condition, the go plug gauge should fit in the hole. If the go plug gauge will not fit into the hole in the workpiece, then that is an indication that the hole ’ s diameter is too small (an insufficient amount of material has been removed from the wo...