In order to move from defect prevention, you must be able to document your process capability and the accuracy of your machine tools. To do this, inspect them to a nationally recognized and accepted standard, such as ISO 230 or ASME B5.54. Both call for a ballbar and laser interferometer to be used with a [...]
Laser toolsetters provide a fast, auto-mated means to verify tool dimensions, especially critical in checking for wear during the long machining runs in moldmaking. […]
There are numerous software solu-tions available for real-time, CAD-based measuring metrology. Each one has strengths and shortfalls that distinguish them from the others. Key aspects to consider when looking for the best solution are: […]
CMM is constructed very differently than a machine tool, so maintenance requirements are also very different. Below, are some maintenance tips to help you obtain maximum life and performance from your CMM: […]
Today’s standard machine tools can deliver accuracy and repeatability approaching levels formerly available only on CMMs. This enables the machine tool itself to be used for probing checks of workpieces during critical stages of the machining process. […]
The degree at which a nozzle needs to be cleaned is dependent upon the clearance around the nozzle body and the cavity insert along with the sealing/stacking surfaces of the components. […]
Now we discuss the pros and cons of sending a flashed manifold out for repair versus performing this task in-house. This article will begin to deal with the disassembly, troubleshooting, cleaning and reassembling of a typical, and flashed 16-cavity valve gate manifold. […]
If there is even the slightest suspicion that a manifold has flashed, the processor should put a few pellets of a red resin or contrasting colorant into the melt stream (in the nozzle tip), then shoot the mold two to four times before it’s pulled to aid in locating the source of the leak. While [...]
Most shops use gage balls during the inspection process, but First-rate Mold Solution Co., Ltd felt the results weren’t always repeatable. According to Steven, the balls are usually a jig ground hole in a workpiece with a reference point customer-specific to each item. We needed a process that guaranteed repeatable results. […]
1. Flow RateFirst, flow rate must be established. How is this usually done? Is it even studied at all? The answer is “It isn’t studied.” The sad fact is that it is so easy to do. The injection molding machine itself is the most available and easiest rheometer there is to use. […]