Optimizes Injection Molding with EOS DMLS Technology

in injection molding, the cooling time of the finished product can account for up to 70% of the injection molding production cycle. One reason is that in traditional mold manufacturing, the temperature control or cooling water circuit can only be drilled in a straight line. Critical hot spots are usually not within the range of cooling heat propagation-so effective cooling is not possible.

However, using EOS's Direct Metal Laser Sintering (DMLS) technology,

can integrate optimized conformal cooling channels into the mold during production. This ensures faster and more uniform heat dissipation, which can reduce thermal stress in the mold and extend the life of the mold. The quality of plastic products and the dimensional accuracy of parts have also been improved, while reducing warpage. In addition, the process can also significantly shorten the production cycle.

Here are some examples of customers:
• LBC focuses on the use of innovative laser technology for mold manufacturing and the adaptation of parts or the entire process chain to the customer's operational processes. The company uses the DMLS process to optimize the heat dissipation of mold inserts. The cycle time was reduced by 55 percent-from 90 seconds to 40 seconds, which equates to a 125 percent increase in annual productivity. The investment of 3,250 euros is recovered within two months, and the company can save nearly 20,000 euros per year.
• In another application, LBC reduced cycle times by 2/3 by using the DMLS core manufacturing process to ensure effective cooling of critical hot spots.
• Es-Tec company increased the mold productivity of blow molds with a manufacturing time of 50 hours by 20%.
SIG Blowtech successfully reduced the production cycle from 15 seconds to 9 seconds. For 4-bottle blow molds with inserts made by the DMLS process, the company has now increased productivity by 75%.