• Various types of quality inspections are carried out at manufacturing sites. Pinhole inspection is also a type of quality inspection used in the field of manufacturing, but few people may understand how it works. In this article, we will explain the mechanism, types, and usage scenarios of pinhole testing. What Is A Pinhole? A pinhole is a small defect that is so small that it is not visible. A pin means a needle, a hole means a hole, and a defect that looks like a small hole drilled by a needle is called this. Whether it’s construction, food, or pharmaceuticals, pin......

• In Previous articles, we explained the meaning and types of Geometric Dimensioning and Tolerancing (GD&T), and their differences from size tolerances. This time, we will explain Form tolerance (aka shape tolerance), which is a type of geometric tolerance. It is an important and fundamental characteristic that determines the function of the part, so please learn about it. 1. What Is Form Tolerance (Shape Tolerance)? “Form tolerance” regulates how far a shape (*) such as an indicated plane or straight line can be biased from the ideal shape. This tolerance......

• To determine how accurate the circular shape should be, measure the roundness of the circular cross-section such as the axis, hole, cone, etc. Workpiece GD&T Roundness Measurement (Detection) Methods As we all know, people cannot draw a perfect ideal circle. With the advancement of science and technology, people can only get infinitely close to the ideal roundness in the process of industrial processing of parts. Roundness Refers to an indicator of the actual circle to the ideal circle variation, its tolerance band is the tolerance value t as the radius of the differ......

• Are geometric tolerances important? How is it different from size tolerance? In this post, we’ll answer these questions. Differences Between Geometric Tolerances & Size Tolerances Geometric tolerances have an image that is difficult to grasp, so it seems difficult to understand. However, if you make good use of geometric tolerances, you will be able to draw good drawings without mistakes and prevent problems with transmission to the processor. In this article, we will explain the basics of geometric tolerances and why you should acquire them. If you are a design begi......