SEQUENCE TO WORK CAD-CAM

1. Receive product samples, drawings of customer products

2. Technical Meeting with the customer, to determine the technical agreement

3. Designing a product image, product measurement, Assembly Design

4. 3D Modeling

5. Detail Drawing complete the work plan needs

6. Checking

7. Order Materials

8. Delivery Detail drawings and 3D Modeling

9. Monitoring mold process (stand-by)

1. Accept the job of customer

    Data from a customer in the form of:

   a. Image component (Hard Print)

   b. 2D Data (soft data) - CAD data is usually a file dwg, dxf, pdf, etc.

   c. 3D Data (Modeling) is usually in the iges file, IGS, STP, step, Parasolid, etc.

   d. Sample (Component)

    Each - each of the above data should be checked each other.

   If there is a distinction to be made a report (Report) to the Technical Meeting

   the customer can specify which data should be used.

2. Technical Meeting with customers

    Of the Technical Meeting is expected all the details of data for mold making process can be obtained.

   Details can be seen in the specification of Mold.

3. Assembly Design

    Step - step in making assembly design

   a. Specify the layout of products

      things that underlie the determination of the lay out, among others:

      1. The amount of the required cavity

      2. Direction undercut Slide or Lift Core (if any)

      3. Type gate used

   b. Determining the size of the mold base.

      The basis for determining the size of the mold base

      1. Lay out the determination of the product

      2. tonnage injection molding machine used

   c. Completing Assembly Design

      things that must be considered in making assy detail design

      1. Installation of the slide or lift cores

      2. Determine which parts of which must be in pairs of inserts

      3. Determine Stroke.

      4. Installation of ejector pin.

      5. Installation of Cooling.

      6. Mounting bolts.

      7. Installation of standard parts.

    Details Design Assembly is what will be the reference for the creation of 3D Mold Design and

   Detail Drawing (Drawing Processing). Addition of Assembly Design we can make

   Order Schedule, ranging from Mold base, Insert, up to the standard part.

4. 3D Modeling

    3D modeling include:

   A. Modeling Component

    If the data received from the customer only 2D Cad drawings of components or the data or samples only

    (Without 3D modeling component) we have to make 3D modeling components.

    In making this 3D modeling there are some things that must be considered include:

        a. Product form

        b. Dimensional tolerances

        c. Taper (draft angel)

        d. Parting line

    By making 3D modeling we will be obvious which parts are undercut

    or which part should be installed insert. This is definitely going to be easier for us in designing

    Each mold later finished the modeling component we must check it out.

   B. 3D Mold Design

    Modeling a complete mold for the CAM (based Assembly Design).

    Some advantages of this modeling:

        a. Details will be known contour

        b. Checking Assembly Drawing

        c. Help facilitate the making of the Master EDM

        d. Processing section will be more informed about the total Assembly for the mold

5. Drawing Details

    Drawing Details for part - the part that we can make before the standard 3D modeling completed by

   Assembly Details Design reference, but for the parts that relate to the components must

   drafting the form of 3D Mold Design.

   We should detail this picture as clearly as possible and sekomunikatif possible, due to the

   This image processing section will make the item / part of the mold that is ordered by the customer.

   After completion of detailed pictures we shall check it before drawing down, by means of:

       a. Check Item Details

       b. Check the completeness of the image

       c. Check the completeness dimension (especially in the image on the scale)

       d. Check Assembly Item Details

       e. Grab all the items details.

        f. Discard all dimensions.

       g. Paint with different colors.

       h. Combine all items.

        i. Check the details, if there are matching.

    Once completed checked we can print these pictures to be sent to the Processing.

6. Checking

    This checking process is checking a total of detailed drawings to 3D modeling usual

   conducted by the Leader and co-leader is expected to more checks will further reduce

   percentage of errors that can occur.

7. Order Materials

    The ordering of material to play Cavity / Core can we order along with Assembly drawing

   (After check all). Better-for ordering material did have to wait all

   design has been completed in check, but by reason of the limited time (targeted delivery) usually order

   material before drawing details completed.

8. Delivery Detail drawings and 3D Modeling

    After going through the process of checking Details 3D Drawing and Modeling can be sent to the

   Processing to include the Drawing List and Modeling List.

9. Monitoring mold process (stand-by)

    Although 2D drawings and 3D Modeling has been sent to the processing, permanent monitoring is

   of each item is made by using Part Control Sheet (because most know

   about the details of the mold is designer itself). Expected to monitoring or

   This check can suppress errors or forgetfulness factor in processing time.

Introduction to CAD / CAM #1

Definition of Computer Aided Design (CAD):

Is a system design / design using computer equipment and specific design software, which allows the engineer to plan, model, and evaluate a model of a product / item accurately before production (manufacturing).

Definition of Computer Aided Manufacturing (CAM):

Is a system that automatically capable of producing the product / workpiece (finished product) through the use of computer-controlled machinery.

Why should CAD:

1. The design process requires a long time and the use of paper media perishable and difficult in storage.

2. The process of editing the design on paper or media image means the same as re-drawing process that takes a long time.

3. Equipment design required in making conventional picture very much and expensive (table drawing, tracing, rapido, mechanical pencil, ruler, etc.).

4. Product life cycle (Product Life Cycle) short take rapid product design to be able to compete in the market.

History of CAD Technology

1. The development of computers for design purposes since the beginning of 1960. In the past the field of design using drawing and tracing paper media and used in every school vocational and manufacturing industry.

2. In 1970 the CAD system has become a popular and widely used, but its development is still limited to 2D design.

3. In 1980, drawing a solid technology has become a popular application programs used in the design of CAD (RomulusTM, Uni-Solid Catia).

4. In 1982 Autodesk AutoCad 2D applications issued, then in 1988 introduced Pro Eng with the main feature modeling methods and parameters linked.

5. Beginning in 1990 the world know B-rep solid modeling kernels (application for manipulation of 3D objects topology geometry models), the application is then developed by various manufacturers of CAD applications.

6. Along with the advancement of age began to appear one application program design Solid Work 1995, Solid Edge 1996, IronCad 1998.

Element - the element of CAD

1. Hardware: hardware such as computers and other supporting devices.

2. Software: an application program executed by the computer

3. Data: in the form of structural information / data that are managed by software

4. Man: is the main element of any technological progress. Because the technology is sourced from the fulfillment of human needs.

Basic Mold Contruction/Design

Basically the injection mold consist of two halves,one mold half contains the sprue bushing and runner system,the other half houses the ejector system.the molded part is located at the parting line.

The design of mold is determined by the molded part to be produced the following basic types exist;

* Parts without undercuts e.q.tumblers,bowls,comb.
* Parts with external undercut or side opening.e.g,spott core,treaded parts.
* Parts with internal undercut.e.q.threaded clousures,snap-in clamps.
* Parts possesing external and internal undercut,parts for fountain pens with internal and external treads.

+types of sprue gate.

+runner and gates in multy cavity mold.

+hot runner injection mold.

+stact molds.

+cooling.

+ejector system.

+venting.

+degating devises.

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