Engraving was invented in China in the fourth century. There they were used for marking the dials on the shadow clock. Since then and almost until the present day have used primarily manual methods fine small material handling, including labeling. This action was carried out with the help of cutters of different shapes. In particular, ….  Read More

depending on the design and use of taps can be divided into the following basic types: 1) manual, or locksmith, in a set of two or three pieces or more, used for thread cutting by hand; 2) machine for tapping through and blind holes for tapping, drilling and other machines; 3) the wrench used for ….  Read More

improve the performance of processing on a lathe mean Release more details in a shorter period of vremeni, the Decline of marriage Relief labor, due fromsorry the machine control. Possible ways to achieve performance machining on a lathe the Increase in processing mode(if there is a good tool otherwise it may get harm instead of ….  Read More

When cutting threads on the stud to control the thread need threaded micrometer with the «reduction» of the middle diameter by the amount of the coating layer. If a batch of parts for threading large, are made of a special caliber «under the cover».

the caliber of the tube is the first measuring tool used to check the mating parts. Caliber cannot be measured, and it is intended only for hit-testing the resulting size is within the specified range. the caliber of the tube was formerly the principal measuring tools in the engineering industry, but the emergence of CNC ….  Read More

Heating sheet metal is often used for bending pipe or sheet metal made of non-ferrous metal, such as copper and its alloys. For this purpose it is best to use segment knife or are bent knife, which consists of a set of segments of different widths, to improve the quality flexible. Various combinations allow to ….  Read More

Production of finished articles by machining or casting appeared several thousand years ago. Until now, this method remains the primary consideration. A manufacturer of slots and studs to connect the two parts, grooves of various shapes and sizes, engraving, shaped milling, etc.