Marking technology for Embossing

Embossing creates permanent and deep markings by means of mechanical deformation of the workpiece surface. Therefore a die stamp with a plastically shaped stamp image is hammered or pressed into the workpiece. The impact displaces the workpiece material and a negative impression of the stamp image results. Typically, markings with serial numbers or type designations are produced. Embossing systems enable simple and relatively inexpensive permanent marking of metal as well as cold-formable materials in general, but also of hot steel. Heatable stamps can also be used to identify thermoplastics or to mark wooden parts. Embossing systems are not suitable for marking barcodes or data matrix codes made of metal. In order to change the marking content, the stamp needs to be replaced. In print wheel embossing systems, several numbers or letters are arranged on rotatable printwheels. This allows a quick change of the marking contents without the replacement of the entire stamp plate. For stamping the desired types must be turned and fixed propperly. Roller embossing systems provide handlings to unroll rotationally symmetrical workpieces. A pressfit system is additionally required to handle embossing systems. Stamp embossing systems mark repetitive marking contents, while print wheel embossing systems allow continuous or programmable markings as well. Important applications are direct markings of semi-finished products, components and assemblies with rough or slightly soiled surfaces and, more general, applications with lower quality requirements. User industries include special purpose machinery and equipment engineering for the automotive supply and automotive industries and others.