Solution:
Two important processing parameters that influence the part shrinkage are packing pressure and packing time. In this study, Moldex3D was utilized to optimize the part/mold design and further identify the appropriate packing conditions to successfully adhere to the NPSM screw thread requirement.

Benefit:
BUCT was able to successfully control the precision of the screw within the acceptable tolerance. The part reject rate was significantly lowered from 90% to 5% which ultimately helped generate a greater business value for manufacturing companies, as well as, reducing material wastage.

Software used:
Moldex3D Advanced
– Fiber
– Flow
– Pack
– Warp

Solution:
Moldex3D’s solution for multi-component molding (MCM) was utilized in this study. Simulation results helped identify the potential problematic areas and pinpoint the crucial factors influencing the product warpage in the early product development stage. The accurate simulation results were further validated by an actual mold-trial. Through Moldex3D simulation analyses and the actual mold-trial results, the team was able to clearly understand the phenomenon of the skin/ core ratio and further concluded that the product warpage could be improved by adjusting the amount of the injected core material, lowering the melt temperature, and reducing the flow rate of the first shot.

Benefit:
– Reduced warpage
– Optimized process parameters

Software used:
Moldex3D Advanced
– Flow
– Warp
– Co-injection
– MCM

Solution:
Moldex3D analysis was utilized to precisely simulate the injection molding process of a multi-cavity system. NCU was able to observe the cutting, rotating, and mixing effects of the plastic meltafter applying static mixers in the runner design, evaluate the static mixer’s performance, and test different static mixer designs. Thus, at the end, NCU could identify the best static mixer design to further solve the flow imbalance issue of a multi-cavity system.

Benefit:
– According to Moldex3D analysis results, the temperature distribution and flow balance could be improved effectively after the plastic melt passed through a static mixer.
– Moldex3D particle tracer was applied to better analyze the polymer particle filling behavior inside the cavity, making it easier to compare the pros and cons of using different static mixer designs and identify the best static mixer placement arrangement in order to achieve the most optimal design.

Software used:
Moldex3D Advanced
Moldex3D eDesign

Solution:
Moldex3D simulation technology was utilized to study the two different molding scenario of using PLA material with and without adding any fibers. Next, a detailed simulation analysis was done to further differentiate the effects of using short and long fibers in injection molding process with PLA material. Then, Moldex3D FEA interface was used to transfer essential injection molding simulation data to ANSYS software for a further analysis on product structural integrity.

Benefit:
Through Moldex3D simulation analyses, NTUST was able to understand that the fiber orientation result is highly associated with the filling behavior and they could further identify the different fiber orientation results in the freeze layer, the shear layer and the core layer. Then, with a close integration of Moldex3D and structural analysis software-ANSYS, a more precise analysis on product structural integrity could be achieved. Thus, with the accurate simulation results, NTUST was able to conclude that long fibers possess better functionality over short fibers due to its superior performances in fiber orientation, tensile strength, impact strength, and warpage.

Software used:
Moldex3D Advanced
– Stress
– Fiber
– FEA Interface

Solution:
Moldex3D was utilized in this study to validate the residual heat phenomenon and the occurrence of sink marks. Thus, the purpose of this study is to find out the most appropriate processing parameters for a sufficient cooling to avoid sink marks which ultimately leads to better production efficiency.

Benefit:
By utilizing Moldex3D analysis, NKUAS was able to successfully predict and avoid potential problems that might lead to poor product quality; thus the production efficiency could be greatly enhanced.

Software used:
Moldex3D eDesign
– Optics

Solution:
This study features an optical lens with a heavier thickness design of 12mm. The concept of MCM sandwich molding was implemented in the form of B-A-B molding sequence layer design. Moldex3D’s MCM analyses were utilized to study the appropriate thickness design for A and B layers in order to achieve the shortest cooling time.

Benefit:
– Cooling time were drastically shortened by 50-60% after changing the thickness of A layer to twice as thick of B layer.

Software used:
Moldex3D Advanced
– Optics
– MCM

Solution:
In order to understand the influences of injection molding to freeform optical devices, in this study, Moldex3D’s finite element method (FEM) was employed to investigate the miniature microinjection molded Alvarez lenses. In addition, Moldex3D was also used to explain the differences between the nominal and experimentally measured wavefront patterns of the microinjection molded Alvarez lenses.

Benefit:
– Utilized the information of part deformation and uneven refractive index to calculate the optical aberrations of the injection molded Alvarez lens
– Significantly increase production yields by 99%
– Compensated optical aberration by modifying the original surface to obtain ideal MTF results

Software used:
Moldex3D Advanced
– Optics

Solution:
Utilize Moldex3D simulation to analyze PIM and MCM processes in order to further determine the proper product structure design and examine potential molding problems, such as short shots, air traps, excessive pressure, uneven cooling, or warpage. In order to improve the product quality, NKUAS resorted to Moldex3D’s solutions to simulate PIM and MCM processes to further observe the phase separation phenomenon of the powder and the adhesive, and visualize insert molding in hopes of determining the most optimized design. The accurate prediction on the powder density and distribution prevented the occurrence of stress concentration and residual stress and the ultimate goal of reducing volumetric shrinkage and product warpage could be achieved.

Benefit:
– Improved powder concentration distribution
– Solved warpage problem
– Enhanced the part quality by 71.15%

Software used:
Moldex3D eDesign
– Powder Injection Molding
– MCM

Solution:
With Moldex3D analyses, Chun Yuan University was able to attain the most optimal processing parameters, as well as, gain a comprehensive understanding of how glass fiber material influences the precision roundness of the part. The accurate simulation results were validated by an actual mold trial and the ultimate goal of improving the precision roundness of the part within the tolerable range could be further achieved.

Benefit:
– Achieved a balanced fill pattern
– Optimized the part roundness by 35%

Software used:
Moldex3D eDesign
– Fiber

Solution:
Linear Mold & Engineering utilized Moldex3D software to analyze a conventional cooling approach to a tool in question, showing where the areas of concern were that would demand long run times and produce extensive warpage of the part. Taking the results Moldex3D produced, Linear Mold then developed a solution in the form of conformally cooled components to replace or modify existing components in the tool to streamline the injection process. With a small amount of cycle process modification over the course of a day, the customer achieved the time savings Linear Mold predicted within a 3% margin of error.

Benefit:
– Reduced cycle times by 50 %
– Solved warpage problem
– Developed a competitive advantage in the market

Software used:
Moldex3D Advanced
– Flow
– Pack
– Cool
– Warp
– Fiber
– Stress
– CADdoctor

Solution:
Moldex3D was utilized to optimize process parameters and run virtual molding simulations. It helped Calin Technology to determine the best combination of process settings for molding the projector lens. Using the optimum process conditions along with compensation method technology, Calin Technology was able to compared the simulation results to experimental results and verified that the requirements had been met with the help of Moldex3D.

Benefit:
– Improved weld lines to meet surface quality
– Achieved uniform distribution of shear stress

Software used:
Moldex3D Advanced
Moldex3D eDesign
– Flow
– Pack
– Cool
– Warp

Solution:
KOPLA utilized Moldex3D simulation solution to identify the optimum gate location that could lead to good flow pattern and low warpage displacement. After the best gate location was identified, KOPLA output the warpage simulation result to ANSYS using Moldex3D FEA interface to increase the accuracy of the structural analysis.

Benefit:
– Obtained more realistic structural analysis
– Reduced cycle time and improved product quality

Software used:
Moldex3D eDesign
– FEA Interface
– Flow
– Pack
– Cool
– Warp

Solution:
To effectively reduce residual stresses and warpage, Moldex3D enabled MIRDC to determine the optimal processing conditions through the Design of Experiments analysis, varying mold temperature, injection velocity and packing pressure factors. The simulation results then were compared to experimental results to further investigate the fringe orders and optical paths. The results showed that higher velocity can help improve the fringe orders and optical paths, and increased packing pressure and time can help improve warpage.

Benefit:
– Improved warpage by 30%
– Reduced optical path difference from 3.483X10-4 mm to 1.460X10-4mm
– Cut down mold trials and save costs

Software used:
Moldex3D Advanced
– DOE
– Optics
– Flow
– Pack
– Cool
– Warp

Solution:
In this project, two analyses were conducted. The first analysis was done with standard sequential valve gating and was designed to see if the simulation can help identify the problem areas. The second simulation was also sequenced, but opening strokes of the delayed pins were controlled. The purpose of the second analysis was to find out if the simulation can help validate the activeGate controls. With Moldex3D simulations, Synventive were able to identify molded parts that could potentially have defects, which would cost time and money, before the tool is ever machined. Additionally, the ability to simulate the advanced pin control allowed Synventive to alter the characteristics of the fill and possibly eliminated any defects found in the injection molded part.

Benefit:
– Enabled pin movement simulation to identify defects that can be eliminated by activeGate controls
– Early detection of common defects in injection molded parts
– Saves molders time and money by scrapping less parts

Software used:
Moldex3D Advanced
– Advanced Hot Runner

Solution:
Moldex3D Design of Experiment (DOE) analysis was implemented to determine the optimum gate type and processing conditions. Acer used the optimum processing conditions obtained from the DOE analysis to adjust gate and wall thickness designs to avoid ink washout and stress mark issues.

Benefit:
– Minimized ink washout and stress marks
– Optimized wall thickness by 48%
– Reduced product weight by 40%

Software used:
Moldex3D eDesign
DOE

Solution:
TYC used Moldex3D Advanced for filling simulation analysis of the BMC reflector part. The analysis result accurately identified where the air traps would be in the original design. Moreover, Moldex3D helped TYC validate how changes to gate locations and wall thickness can affect air trapping before making physical changes in tools.

Benefit:
– Eliminated air traps
– Reduced costly physical prototypes

Software used:
Moldex3D Advanced
– Flow

Solution:
TomTom used Moldex3D eDesign with Fiber simulation capability to investigate the root cause of warpage and the contribution of each variate to the total warpage of the product. Through the contributing factor study, TomTom was able to identify the major factors affecting the warpage. By combining all these key factors, TomTom was able to make the critical design decision quickly and accurately, and successfully reduces the risk of assembly problems.

Benefit:
– Minimized the assembly gap from 2.3mm to 0.3mm to meet dimensional specifications
– Increased yields by 92%
– Saved money and development time

Software used:
Moldex3D eDesign
– Fiber
– Flow
– Pack
– Cool
– Warp

Solution:
To understand factors contributing to warpage, Lite-On utilized Moldex3D to simulate the effects of different design approaches, such as changes to gate locations, mold temperature and reducing materials. Comparing the analysis results, Lite-On determined which design had the minimum amount of warpage displacement. Next, Lite-On exported the simulation result of the optimal design to LS-DYNA using Moldex3D FEA interface and further investigated the internal strength of the part. This simulation, combined with structural analysis capabilities, helped Lite-On make informed decisions before making costly changes to existing part designs.

Benefit:
– Shorten product development cycle by 13%
– Significantly increase production yields by 99%
– Cut manufacturing costs

Software used:
Moldex3D Advanced
– FEA Interface (integrated with LS-DYNA)
– Flow
– Pack
– Cool
– Warp