Review Article

A Review on Machine Learning Models in Injection Molding Machines

Table 11

Recurrent neural networks in injection molding.

Algorithm usedAI model taxonomyDepth layer sizes, training time, and testing timeDatasetFramework, core language, and interfaceAdvantagesDisadvantagesRef.

Regression and neural networkSupervised learningThree-layer MLP architecturesDataset comes from inline industrial measurementsScikit-learn library, Python,Shows the best performance about one and only LSTM layer architecturesRecurrent network architecture was also complex[113]
The real-time adaptive control algorithmSupervised learningThree-layer neural networkNAComputer simulationsProposed control strategy is effective under setpoint change and bounded disturbanceFor example, a considerable fixed learning rate was considered, so RNNM might suffer from instability[114]
Training algorithmSupervisedTwo-layer neural networkDataset consists of plasticizing stroke, holding pressure, injection velocity, metering stroke, mold opening speed, RPM, injection pressure, cooling time, cushion, and nozzle temperatureComputational tool (DPTNN)Online monitoring and diagnosis system on false detection of the injection molding machineOnly single network architecture was used[115]
TDNN and Elman networksSupervised learningNANAMATLABTDNN exhibits lesser train time comparatively for the wanted performanceTemporal dependency is large[116]
Genetic algorithmsSupervised learningThree layers. Hidden layers do not interact with the outside world but help in non-linear feature extraction about data providing the output-input layer.Data consisted of injection velocity, melt temperature, packing pressure, and mold temperatureNAParameters were optimized for minimum dimensional shrinkage. Reduces a good amount of cost and time.Few results of reverse mapping deviation which is more significant than 10%[117]