Moldmakers benefit the most, by far, from fully digital sinker EDM generators. The digital technology has advanced the functionality of generators to the point where mold shops can now precisely control and manipulate the EDM spark. Such control allows them to produce components that reduce overall mold maintenance costs for their customers. […]
Every moldmaker strives for higher cutting speeds and reduced electrode wear to increase overall mold production efficiency. However, as burn speed/spark power increases, so, too, does risk of damage to the part surface, especially in those applications where cavity undersizes are tight. […]
The ability of an EDM electrode to produce and maintain details is a crucial part of the machining process, and that ability is affected by its wear resistance, particularly when intricate details or thin, deep ribs are involved. To achieve maximum EDM productivity, moldmakers need technology that allows them to reduce electrode erosion/wear, ideally by [...]
The high-strength aluminum alloys available today are feasible alternatives to steel for tooling. Originally used primarily for the production of prototypes because of its lower cost, aluminum offers several other advantages that make it a viable option for production molds. […]
If you opt to use aluminum for your next mold project, it’s important to select the appropriate aluminum alloy. Alloys are created when elements including copper, magnesium and zinc are added to the base aluminum. Each added element contributes individual beneficial properties that will improve the aluminum. […]
Different aluminum alloys require differing welding wires in order for successful welding to be achieved. Characteristics of the wire should match those of the specific alloy on which it will be welded, and the wire’s color-matching ability, strength and effect on HAZ should also be considered. Additionally, the welding wire must have a melting temperature [...]
Once the proper wire has been selected, focus must shift to the proper technique for mold alloy to be welded. This is the largest contributor to a successful weld repair. A proper technique involves more than the actual welding; it must also take into account ambient conditions and preheating of the material, which will remove [...]
Most mold builders are familiar with the 5S workplace organization method for lean manufacturing, which embraces the concepts of sort, set in order, shine, standardize and sustain. Each aspect focuses on avoiding waste and can easily serve as a basis for continuous improvement within mold shops that use EDM and graphite. […]
The set-in-order 5S principle involves making workflow smooth and easy, arranging items for easy selection and preventing lost time. […]
Standardizing involves adopting best practices, establishing a standard for every process, aligning everything in its right place and maintaining high standards of workplace organization. […]