Böllhoff Thailand’s Post

THERMOFORMING Thermoforming refers to a fabrication process which essentially involves the following three steps: 1.Heating of a plastic sheet to its softening temperature; 2.Forcing the hot, flexible material against the contours of a mold; 3.Cooling the sheet to reatin the mold’s shape and detail. The types of thermoforming processes are vacuum forming, pressure forming, melt phase thermoforming, and matched mold forming. Examples of applications of thermoformed parts are: #thermoforming #plasticpackage #knowhow #applications

Core Deflection during Cavity Filling www.kruseanalysis.com / www.krusetraining.com / www.molding-expert.com Core deflection during injection molding occurs when the molten plastic pushes against the core—an internal feature or protrusion used to shape hollow or complex areas of the molded part—as it fills the mold cavity. This can cause the core to bend, shift, or break due to the high pressure exerted by the flow of material. Core defection leads to dimensional inaccuracies, part warping, or defects such as inconsistent wall thickness or misaligned features in the final product. It's essential to ensure proper core strength, mold design, and material flow control during the injection process to prevent this. #injectionmolding, #plasticsindustry, #moldmaking, #molding, #moldingdefects #plasticinjectionmolding, #plastics, #plasticsengineering, #molddesign, #partdesign, #moldex3d, #Spritzguss, #plastics, #plasticinjectionmolding, #plasticsengineering, #partdesign #arburg,#kunststofftechnik #kunststoffe ,#seminar, #kunststoffindustrie, #polymers,#moldmaking, #moulding,#mouldmaking,#mouldmaker

Hi friends, this Is a very GOOOOOD example for show the deflection en this case of this núcleo. It Is the same example when we have a thin broken insert, the pressure plástic Is More strong that the insert and in the future we have a broken insert and we aré thinking about the root cause for this Is very importan have a designer that know how Is the pressure in machine and check the thin or long part with this problem for this example Is very simple improve this conditions, only need make the núcleo More long for have a looking fit vs the cavity and reiforce for the plástic pressure. For these cases there is software that tells you where the pressure is being increased. If you don't have it, it is easy to detect, you just have to make cuts in the plastic piece and the deflection will be very noticeable. I hope my comment can help you in similar cases, thank you.

Core Deflection during Cavity Filling www.kruseanalysis.com / www.krusetraining.com / www.molding-expert.com Core deflection during injection molding occurs when the molten plastic pushes against the core—an internal feature or protrusion used to shape hollow or complex areas of the molded part—as it fills the mold cavity. This can cause the core to bend, shift, or break due to the high pressure exerted by the flow of material. Core defection leads to dimensional inaccuracies, part warping, or defects such as inconsistent wall thickness or misaligned features in the final product. It's essential to ensure proper core strength, mold design, and material flow control during the injection process to prevent this. #injectionmolding, #plasticsindustry, #moldmaking, #molding, #moldingdefects #plasticinjectionmolding, #plastics, #plasticsengineering, #molddesign, #partdesign, #moldex3d, #Spritzguss, #plastics, #plasticinjectionmolding, #plasticsengineering, #partdesign #arburg,#kunststofftechnik #kunststoffe ,#seminar, #kunststoffindustrie, #polymers,#moldmaking, #moulding,#mouldmaking,#mouldmaker

Core Deflection during Cavity Filling www.kruseanalysis.com / www.krusetraining.com / www.molding-expert.com Core deflection during injection molding occurs when the molten plastic pushes against the core—an internal feature or protrusion used to shape hollow or complex areas of the molded part—as it fills the mold cavity. This can cause the core to bend, shift, or break due to the high pressure exerted by the flow of material. Core defection leads to dimensional inaccuracies, part warping, or defects such as inconsistent wall thickness or misaligned features in the final product. It's essential to ensure proper core strength, mold design, and material flow control during the injection process to prevent this. #injectionmolding, #plasticsindustry, #moldmaking, #molding, #moldingdefects #plasticinjectionmolding, #plastics, #plasticsengineering, #molddesign, #partdesign, #moldex3d, #Spritzguss, #plastics, #plasticinjectionmolding, #plasticsengineering, #partdesign #arburg,#kunststofftechnik #kunststoffe ,#seminar, #kunststoffindustrie, #polymers,#moldmaking, #moulding,#mouldmaking,#mouldmaker

An Inside Look at Carbon Fiber Wing Manufacturing Process The video shows the process of manufacturing a carbon fibre wing for an lightweight aircraft, using the prepreg vacuum bag process. It all starts with the impregnation of the tissue(reinforcement )whether its Carbon fibre, fibre glass, or Kevlar. Fibres are impregnated with controlled amount of resin/ fibre ratio,and then inspected by the quality manager to make sure they are at the required standards which are the highest at company. The prepreg is then placed on the prepreg cutting machine to go through the cutting process according to the drawings(nesting) on the software. During the same moment someone is applying mold release agent(frekote, release all) on the mold so the prepreg doesn't stick to the mold during the curing. Just like applying butter on the pan before making pancakes! The laminating(layup) process starts in the clean room(CCA room) where the temperature and humidity is controlled according to the ISO requirements. The operator then places the layers of Carbon fibre prepreg on the mold. You can see that he applies a vacuum after the first layer. This step is called "compaction" it is to make sure the first layer is well placed on the mold so it doesn't keep any air bubble in the part. Then the mold is sealed with a vacuum bag after applying the last layer of Carbon fibre. Along with other consumable materials needed for this process. (peel ply, release film, breather, and vacuum bag) The molds are then placed in the oven to start the curing process, or the autoclave(temperature , vacuum, pressure) for structural parts. The part is then taken out of the mold for the finishing process, where the edges are cut, and the parts get sanded. In the end, the part ends up in the painting cabin ready to be painted. "Let’s connect and grow together! Follow Hulesh Nagpure for more updates and ideas!" #carbonfiber #prepreg #lightweight #composites #wing #resin #Composights

🌈 Analysis of the causes of cracking of injection molded products 🚀🚀 🔥🔥 1. Processing: ✅ Excessive processing pressure, too fast speed, too much filling, too long injection and holding time will cause excessive internal stress and cracking.⚡ ⚡ ✅ Adjust the mold opening speed and pressure to prevent rapid strong pulling of the parts from causing demolding cracking. ✅ Properly increase the mold temperature to make the parts easy to demold, and appropriately lower the material temperature to prevent decomposition. ✅ Prevent cracking due to weld marks and plastic degradation causing low mechanical strength. 🔥🔥 2. Mold: ✅ The ejection should be balanced, such as the number of ejector pins and cross-sectional area should be sufficient, the demolding slope should be sufficient, and the cavity surface should be smooth enough to prevent cracking caused by residual ejection stress concentration due to external force. ✅ The structure of the part should not be too thin, and the transition part should use arc transition as much as possible to avoid stress concentration caused by sharp corners and chamfers. ✅ Use as few metal inserts as possible to prevent the internal stress from increasing due to the different shrinkage rates between the inserts and the parts.⚡ ⚡ ✅ For deep-bottomed parts, appropriate demoulding air inlet channels should be set to prevent the formation of vacuum negative pressure. 🔥🔥 3. Materials: ✅ The recycled material content is too high, resulting in low strength of the parts. ✅ Excessive humidity causes some plastics to react chemically with water vapor, reducing strength and causing ejection cracking.⚡ #injection #mold #injectionmolding #molding #ejection #material #process #mould #tooling #plastic #plastic #demoulding #demoulding #cavity #surface

Ejecting Cold Runners / Placement Considerations www.kruseanalysis.com / www.krusetraining.com / www.molding-expert.com In injection molding, ejector pins are essential for safely and efficiently pushing the molded part out of the mold after it has cooled. Proper placement of these pins is crucial, especially when ejecting a cold runner, to ensure the runner system is removed without damage. Ejector pins should be strategically positioned along the runner to distribute the ejection force evenly, preventing deformation or warping. This balanced ejection ensures that the sub-gate and runner system are released cleanly without sticking or damaging the mold. Your role as an engineer is important—it's crucial in determining the placement of ejector pins. Your expertise is essential to placing the pins at critical locations, such as at the ends of runner channels and near junctions where the runner connects to the sprue or gates. This strategic placement and the proper support from the ejector pins minimize the risk of the runner sticking, breaking during ejection, or deforming. Your knowledge and expertise as an engineer are not just useful, they are integral to this process. #injectionmolding, #plasticsindustry, #moldmaking, #molding, #moldingdefects #plasticinjectionmolding, #plastics, #plasticsengineering, #molddesign, #partdesign, #moldex3d, #Spritzguss, #plastics, #plasticinjectionmolding, #plasticsengineering, #partdesign #arburg,#kunststofftechnik #kunststoffe ,#seminar, #kunststoffindustrie, #polymers,#moldmaking, #moulding,#mouldmaking,#mouldmaker

SMC Mold: Revolutionizing Manufacturing with Advanced Composites Sheet Molding Compound (SMC) is a high-strength, lightweight composite material transforming various industries. Made of polymer resins, glass fibers, fillers, and additives, SMC offers versatility and performance. Key Applications: 1. Automotive: Body panels and structural components benefit from SMC’s strength and lightweight properties. 2. Electrical: Ideal for enclosures and insulating components due to its excellent electrical insulation. 3. Construction: Used in structural parts and panels, providing corrosion resistance and design flexibility. The SMC Molding Process: 1. Preparation: SMC sheets are cut to the required size. 2. Molding: The pieces are placed into heated molds, compressed, and shaped. 3. Curing: The molded parts are cured under heat and pressure. 4. Finishing: Parts are trimmed and finished as needed. Advantages: 1. High Strength-to-Weight Ratio: SMC components are robust yet lightweight. 2. Corrosion Resistance: Ideal for harsh environments. 3. Design Flexibility: Can be molded into complex shapes. 4. Dimensional Stability: Maintains integrity under various conditions. SMC molding offers innovative solutions for modern manufacturing, combining strength, flexibility, and durability. https://lnkd.in/gHSRE_5C #SMCMOLD #INJECTIONMOLD #PLASTICMOLD #2KMOLD #PLASTICPART