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SKID CIP

Med Techno Conception
in Process Simulation
3 1 Beginner
SKID CIP
cip skid

Cooling System of an Injection Mold

Murali K
in Tooling
3 0 Beginner
Injection Mold Cooling Design The design of the injection mold cooling system is very important. The cooling time takes up 70% to 80% of injection molding cycle, a well-designed cooling system can shorten the molding time and improve the productivity magnificently. Poor design of cooling system will extend molding time, increase production cost, and the injection mold temperature has great influence to the mold shrinkage, dimensional stability, deformation, internal stress and surface quality. So what are the factors that matter to the cooling effective? Plastic wall-thickness Part with thicker wall would need longer cooling time. Generally, the cooling time is approximately proportional to the square and the thickness of plastic parts. If possible, propose to the part designer to minimum the wall thickness. Mold steel The higher the thermal conductivity of the injection mold steel, the better for heat transferring, the shorter cooling time needs. In practice, injection mold shop usually copper to replace steel on where the cooling line is not possible to do. Cooling line layout The closer the mold cavity goes to the cooling pipes, the greater the diameter of cooling pipes, the better the cooling effect, the shorter the cooling time is going to be. The designer should look out for all the possible to get maximum cooling effect. Coolant The nature of the coolant could be different, usually used coolant are oil and water. Viscosity and thermal conductivity of the coolant also affect the heat conduction effect of the plastic injection mold. The lower cooling fluid viscosity, the higher the thermal conductivity, the lower the temperature is, the better cooling effect. Cooling system design rules: • Ensure cooling efficiency, achieve shortest the cooling line meanwhile get quality parts. • Ensure uniform cooling to avoid deformation. • Ease of manufacturing. Some examples of injection mold cooling design If possible, the number of cooling channels should be as many as possible, diameter of the cooling channel should be design as large as possible, cooling speed of A is faster than B as figure below. Diameter of cooling channel usually are 6-12mm. Cooling channels layout must be reasonable. When the wall thickness of part is uniform, the distance of each channel to the surface of parts should be even, which means the layout of channels should follow the actual geometry of the part, see figure A. When the thickness of the part is un-uniform, then thicker wall area need more cooling, see figure B, the injection mold cooling channel can be closer to the part to enhance the cooling effect. Usually temperature of the sprue gate area are highest, so the cooling start from there would achieve the best cooling effective, see figure below. Re-think cooling, that is heat removal, as "Thermal Management" and not simply "Cooling". The engineering of the Thermal System is not trivial but is often over looked. This phase of the process cycle is the longest accounting for 70-80% or more of the time. This means there is a large financial incentive to reduce this and increase profit. However, the traditional way of treating cooling as less critical discounts that dimensional stability and quality is driven during this phase. Removing parts early leads to many issues so the balance is finding the best time and the best method to optimize cooling. Look at cooling as "The goal of cooling is to remove heat from the part in an advantageous way to result in a low stressed part with the best dimensional and physical properties". Often this is treated as an even rate while in truth the cooling may need to be differential to pull the heat from difficult areas of the part as to allow for a steady state result. This requires a more thorough engineering approach including thermocouples to measure the thermal performance of the injection mold, using water circuits and manifolds to control temperatures and, perhaps, tool materials with tailored thermal properties. This list is not inclusive of a fully engineered thermal system but is a thought starter. Using this approach along with good engineering practice will go a long way of moving from designing injection molds (rule of thumb) and engineering tools (using solid practices) to getting efficient tools, improving processing margins and getting better profits.

Tips for Designing FDM Composite Tooling

GrabCAD Tutorials
in Tooling
2 1 Beginner
Regardless of the general FDM tool style you are using, designers should strive to minimize material use while optimizing print time and quality for the desired application. The following are general tips for cost-effective design of FDM. The following tips and tricks are brought to you by Stratasys.com:
printing 3d fdm composites

Camera mold design

Fadi Alahmar
in Tooling
2 0 Beginner
injection mold design with solid works

SolidWorks Tutorial: Car Offroad Motion Analysis Study Animation

SOLIDWORKS TUTORIAL BY HB
in Process Simulation
2 0 Beginner
This SolidWorks tutorial is designed to teach users how to perform a motion analysis study on a car off-road motion. Through step-by-step instructions and real-world examples, users will learn the essential techniques and tools needed to create a realistic animation of a car navigating rough and uneven terrain. SolidWorks Tutorial: Car Offroad Motion Analysis Study Animation
solidworks car motion study assembly desigm motion study solidworks tutorial car offroad motion analysis study anima this solidworks tutorial is designed to teach users how to p

#NX MOLD WIZARD #Plastic Cup mold design

Umesh Arora
in Tooling
2 0 Beginner
#NX MOLD WIZARD #Plastic Cup mold design
siemens cavity core solutions cam cad design cup wizard mold nx

UG nx mould design nx 10

VINAY
in Tooling
2 3 Beginner
Injection mould design with UG nx 10
cavity core nx mould-ug injection design mould

Drill Jig Design - Catia V5

PRASANNAKUMAR SHANKAR
in Tooling
2 2 Beginner
Drill Jig Design - Catia V5 This Design can be used as a Mini Project by Mechanical Engineering Students
tooling drill jig catia v5

Making an Animation

Alex Gröger
in Process Simulation
2 2 Beginner
I know this isn't as much of a tutorial as it is shameless self promotion but hey, everybody's gotta start somewhere.

STM32

Hoang Tham
in Tooling
2 0 Beginner
Tool dev
stm32

Venting system of an Injection Mold

Murali K
in Tooling
1 0 Beginner
Venting is a process that is used to remove trapped air from the closed mold and volatile gases from the processed molten plastic. Without venting, the trapped air will compress as plastic tries to force it out of the mold and the air will ignite, burning the surrounding plastic and causing charred areas on the molded part. Trapped air also keeps the plastic from filling in those areas of the cavity where the air is trapped so a non-filled (or short) part is molded. Volatile gases will be absorbed by the plastic and will cause voids, blisters, bubbles, and a variety of other defects. The concept of venting is simple: provide many pathways to allow trapped air and volatile gases to escape from the mold quickly and cleanly. The pathways should lead directly from the edge of the cavity image of the mold, or through ejector and/or core pin clearance holes, to the outside atmosphere surrounding the mold. These pathways need to be deep enough to let air and gases out easily, but not deep enough to allow the molten plastic to escape through them. Venting should be present on every mold and the vents should be inspected periodically to make sure they are not blocked due to scale buildup. The scale can build up especially if the vents are not properly designed. The correct design is discussed in the next section. VENT DIMENSIONS FOR COMMON MATERIALS Depending on the type of plastic being molded, and whether it is stiff or easy flow, the vent depths should range from 0.0005'' to 0.0020'' in depth. Table 1 gives average depths for some common materials. MATERIALVENT DEPTH (in.)ABS0.002Acetal0.0007Acrylic0.002Cellulose Acetate0.001Cell. Ace. Butyrate0.001Ionomer0.0007Nylon 6/60.0005Polycarbonate0.002Polyethylene0.001Polypropylene0.001Polyphenylene Oxide0.002Polyphenylene Sulfide0.0005Polysulfone0.001Polystyrene0.001PVC Rigid0.002Pvc Flexible0.0015 Table 1 Recommended Vent Depths The vent acts like a window in a wall. When the mold is closed the vent appears as a small tunnel going from the cavity to the edge of the mold. The dimension nomenclatures for the vent are shown in Figure 1. Figure 1 Typical Vent Dimensions. There are three major dimensions for the vent. First is ``D'', the vent depth, already determined by the chart shown in Table 1. Then, comes ``W'', the vent width. This can be anywhere from 1/8 inch wide or more, and a common width is 1/4 inch. There is no maximum width to a vent, but to be practical it should be somewhere between 1/8 and 1/2 inch in width. The final dimension is ``L,'' which stands for land. This dimension should be a minimum of 0.030 inch and a maximum of 1/8 inch. If it is too short, the remaining steel is too weak and will not hold up. If it is too long, the tunnel shape of the vent is too great and the hot gases and trapped air will condense in the tunnel as they travel through the opening, and block the venting action. This will not occur in the first 1/8 inch of travel. Therefore, we make the ``L'' dimension a maximum of 1/8 inch and then open up the depth and/or width of the vent to allow the condensed gases to deposit beyond the vent itself. HOW MANY VENTS ARE NEEDED? The simple answer is that you cannot have too many vents. The more detailed answer is to have at least 30% of the perimeter of the cavity image in vents, equally spaced around that perimeter, as shown in Figure 2. Figure 2 How many vents? Note that the part is small. It measures 2-1/2'' per side. By measuring the perimeter of the part, we add up the sides to get a total of 10 inches. If 30% of that should be in vents, we need a total of three inches worth of vents. If we use 1/4 inch wide vents, we end up with a total of 12 vents for this part. They can be equally spaced as shown, or begin by placing a vent in each of the four corners, one directly opposite the gate, and the others equally spaced in the remaining areas. Another, more conservative approach to venting states that there should be a vent at least every inch along the perimeter of the part cavity. In that case, there would be at least 10 vents for the part in Figure 2. Do not forget to vent the runner. Any air or gas that is trapped in the runner gets pushed into the cavity and must be removed from there. One of the big advantages of venting is that, if properly done, it allows gas and air to get out quickly and helps the plastic to inject faster and at lower injection pressures, thereby reducing stress and speeding up cycle times.

01- SolidWorks Plastics part 1

Masoud Soleimani
in Process Simulation
1 0 Beginner
Introduction to Solidorks Plastics . Analyzing how a mold model will fill with high pressure melted polymer. getting info on how much force the mold will require and how the polymer may behave inside the mold .
analyze shell solidworks injection mold plastics

1D Thermal Conduction Simulation in solidworks for beginners

Amit Mourya
in Process Simulation
2 0 Beginner
BLOG LINK FOR BETTER UNDERSTANDING : https://www.engineerknow.com/2021/03/1-d-conduction-simulation-in-solidworks.html in this video u will learn how to do thermal simulatin 1d conduction in solidworks and how to find the value of heat flux in solidworks it very important in engineering point of view to know the temperature and u will also learn how to plot different graph in it rope wire animation : https://youtu.be/_i8DKxun7kk non linear simulation : https://youtu.be/qSp1WSrwpJg solidworks mechanical project playlist : https://www.youtube.com/playlist?list=PLjExndY7KnkB3VnXJVsTapEhH-5uqAB_z
simulation thermal solidworks

valve

İLHAN .Y
in Tooling
1 0 Beginner
123

Solidworks Simulation with realistic approach

MANIKANTHA P
in Process Simulation
1 0 Beginner
Simulation is the process of creating an abstract representation (a model) to represent important aspects of the real world. ... Your simulation model can be used to explore changes and alternatives in a low-risk environment. Simulation has been successfully applied to many applications.
analysis fea modeling part rectangular solidworks simulation
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