Tutorials

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How to Create a Mold Using SolidWorks

Sérgio CAD CAM
in Tooling
16 0 Beginner
How to Create a very, very simple Mold Using SolidWorks, step by step.
3d cad solidworks injecao injection molde mould mold

TUTORIAL MOLD 01

Sérgio CAD CAM
in Tooling
15 0 Beginner
TUTORIAL HOW TO CREATE A MOLD IN SOLIDWORKS, STEP 1: SCALE AND DRAFT ANALYSIS; TUTORIAL DE COMO CRIAR UM MOLDE NO SOLIDWORKS, PRIMEIRO PASSO, DEFINIR A CONTRAÇÃO (ESCALA) E ANÁLISE DE INCLINAÇÃO DO PRODUTO. CREDITS TO https://grabcad.com/library/plastic-tray-9 BY https://grabcad.com/ashok.kumar-64
solidworks molde mould injection mold tutorial

Learn to create simple BOLT in AutoDesk Inventor

sherwin reforsado
in Tooling
9 0 Beginner
This video is not mine, copyright to the owner CAD CAM TUTORIAL
coil chamfer fillet intersect join extrude sketch part new create how learn

Free Internship for Mechanical Engineers

PRASANNAKUMAR SHANKAR
in Tooling
8 3 Beginner
Dear mechanical engineers, Greetings! Sub: Free Internship for Mechanical Engineers. If you are a fresher and looking out for jobs, this online internship course is a must. Prefinal and Final year mechanical engineering students interested in internships, this course is also for you. You need to study the videos, prepare an internship report, and submit it to us. We will check your report and approve it. Once the report is approved, you will get a soft copy of the certificate.
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Coupler 5x8mm

Edson Joao
in Tooling
8 0 Beginner
5x8 coupling for nema motor

Injection Mold Design

Murali K
in Tooling
8 0 Beginner
Most of the products we design are now a days made of plastics and majority of the plastics parts are only injection molded. So why not we understand the injection molding process and know about the injection mold design before we attempt to design products. (Any comments, suggestions and questions are always welcome.) Murali. K (Injection Mold Designer) (murali.molddes@ gmail.com)

PLASTIC BOX: SolidWorks / KeyCreator

Manolo Valenzuela
in Tooling
6 1 Beginner
See video: https://www.youtube.com/watch?v=wO9Oajq64UM&ab_channel=ManuelValenzuela
mold box plastic nx catia inventor solidworks keycreator

Feeding System of an Injection Mold

Murali K
in Tooling
4 0 Beginner
The function of the mold feed system is to make the high temperature melt under high pressure go into the mold cavity to fulfill that. The style and quantity of gate and feed style often determine the specifications of plastic mold base. Whether the design of the gate system is reasonable will directly affect the appearance, internal quality, dimension precision and molding cycle of the molded plastic parts. Concept and classification of feed system The feed system of the mold is a section of the melt flowing passage from the nozzle of the injection molding machine to the cavity; it can be divided into two main types: cold runner system and hot runner system. Ordinary the cold runner system is also divided into the side gate system and point gate system. The gate system is composed of the main runner, sub-branch runner, the cold material well and the gate. The hot runner system has no main runner and sub-branch runner. The melt passes through the manifold plate and the hot nozzle directly from the gate into the cavity. Design principle of feed system The design of feed system should follow the principles. (1) Ensure the appearance quality of the products.Any gate will leave traces on the surface of the product, thus it will affect the surface quality. In order to not affect the appearance of the product, design should try to set the gate in the invisible parts of the product. If it is impossible, the gate should be easily removed, and after the removal, the left traces should be the minimum. (2) Ensure the quality of the product.The style and quantity of the gate should be reasonable, which need ensure that the plastic melt quickly fill the cavity and the pressure and heat loss are reduced. The internal organization of products is fine. The design of the gate system should prevent the defects of the products, like the shrinkage mark, short filling, flash, poor weld line, residual stress, deformation, uneven shrinkage, jetting, drooling, resin degradation and other defects. The gate system should be able to smoothly guide the molten plastic to fill cavity in every corner, so that the gas can be discharged, avoiding the bubbles by trapped air. The feed system should collect the melt material of the low temperature, prevent its entering the cavity and affect the quality of the products. The gate and runner system are arranged balanced possibly. Melt plastic can be evenly filled in each cavity, so that the shrinkage rate of each cavity is uniform. The good feed system design could improve the size accuracy of the plastic parts, and ensure the injection part to be interchangeable. (3) The minimum flow resistance.Flow path of the melt plastic should be as short as possible, turning should be reduced and the cross-sectional area of the runner should be reasonably. the appropriate cross-sectional area should be small. The reason is; increasing the small to the big is simple, but the contrary is hard; The small runner reduces the proportion of waste material.; The circular melt can fill the cavity in the shortest time to shorten the molding cycle and improve the productivity of the mold; The less air in the feed system would reduce the venting burden of the plastic mold If The temperature and pressure loss of the melt in the flow channel are small, the molding quality of the product is easy to guarantee. (4)Not affect the automatic production.If the mold is designed for the automatic production, the feed system (runner and gate) should be able to fall off automatically. Contents and steps of the feed system design The design procedure and content are as follows. (1) The type of the gate system. According to the structure, shape and size of the product, they would decide its filling process, like the side gate system, the point gate system or the system without runner, and then determine the adoption of mold base. (2) The design of the gate.According to the structure, size and appearance of the product, determine the form, location, quantity and the size of the gate. (3) The dimensions and locations of the main runner (4) Design of branch runner.According to the structure, size and variety of the products, the shape and cross-section of the branch runner are determined. (5) Design of assistant runner.According to the follow-up process or the structure of the product, determine whether to design the assistant runner, and its Shape and size: (6) Design of cold material well.According to the length of the sub runner and the structure of the product, determine the location and size of the cold material well.

Ejection System of an Injection Mold

Murali K
in Tooling
3 0 Beginner
Ejection is a process of removing the plastic material from the mold. This are of different types to remove the material from mold. EJECTION TECHNIQUES: • PIN EJECTOR: • Simplest and most economical method . • Location and number of ejector pins depends on component shape and size. D-SHAPED EJECTOR PIN : • Flat sided ejected pin. • Made by machining of flat on standard ejected pin. • BLADE EJECTOR : • Basically a rectangular ejector pin. • Slender parts such as ribs are ejected by this method. • SLEEVE EJECTOR: • Molding by means of hallow ejector pin or sleeve. • Ejections of small cylindrical Molding. • Provide positive ejector around a local core pin in forming and hole in the mold. • VALVE EJECTOR : • Large diameter ejector pin. • Used for ejections of large component. • Ejector applies ejector force on to the inside surface of the molding • AIR EJECTOR: • Ejector force is supplied by compressed air. • STRIPPER BAR EJECTOR: • Ejector element pushes against the bottom at the molding. • Effective area of ejection is greater. • Suitable for walled box type moldings. • STRIPPER PLATE EJECTOR: • Mold adopted for ejecting circular box moldings with thin wall sections.

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

#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

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

Cooling System of an Injection Mold

Murali K
in Tooling
2 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.

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
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