Week 9 - Project 1 - Door Trim Lower with Engineering Features

Creation of Door trim Lower with Engineering Features

Introduction:

• The main goal of this project is to create Ribs, Heat stakes, and Dog houses, 2-way and 4-way locators of plastic material for door trim lower components that comply with OEM standards utilizing the provided door trim components.
• The Correct Tree Structure should be followed using a boolean operation.
• The name of a geometric set should be based on proper Standards.

Class.A & Class.C_Joining:

• In a process of joining A & C, it should be a closed surface.

Class.A & Class.B & Class C_Joining:

Draft Analysis:

• The draught analysis approach is used to determine whether our CAD-created part model is capable of being manufactured given the draught condition employed.
• Here, the component should be simple to remove from the panel dies (for sheet metal parts) or Mold (in the case of plastic).

Representation of the color range:

• Green color - Verify whether the draft meets your needs.
• Blue color - Determine the error.
• Red color - Make a distinction between the cavity and the core.

Draft Analysis on Class-A Surface:

• Enter analysis, feature draught analysis, and insert.
• Align the compass and the tooling axis.
• Click the surface to verify that it is within the draught values' permitted range.
• The surface should be green, and the nominal input value for the column should be 3 degrees.
• As a result, the draught analysis on the class-A surface was completed satisfactorily.

Draft Analysis on Final Part:

• Using the draught analysis command, you can determine whether the part you drafted will be simple to remove.
• In this kind of analysis, zones on the investigated element are identified by color ranges where the deviation from the draught direction at any given place corresponds to predetermined values.

Orientation of Class A, B, & C, Surfaces:

Front View:

Top View:

Left View:

Isometric View:

Dog House:

• Plastic design makes use of an engineering feature called a dog house.
• Dog houses serve as a support element to increase their strength, other engineering features like snaps, locators, and screw bosses may be mounted on them.
  Draft analysis is performed on dog houses to prevent component breakage during ejection from the mold cavity.
• On the B-surface, the dog house and other engineering components are constructed.

Creation Of Dog House:

• Dog houses are made to prevent screw bosses from leaving a sink mark on the CLASS-A surface and to solve length problems when connecting screw bosses to other parts.
• It also comes in handy when the part needs screw bosses that are perpendicular to the tooling direction.

• The dog house should be at least 12 millimeters wide, and its thickness should be 2.5 millimeters thicker than the main wall.
• The dog house must be between 30 and 60 millimeters high.
• The base draft for the canine house inside is 0.5 degrees to kick the bucket drawing.
• The inside of the dog house has a maximum draft of 1.5 degrees to the die drawing.

Procedure for the Dog House;

• The creation of a side core axis is the first step.
• For creating the side core tooling axis, I have selected the normal to-the-point method.

Draft Analysis of the Dog House:

• The Draft Analysis command allows you to determine whether the draft's component can be easily removed.
• Color ranges are used in this kind of analysis to pinpoint areas on the analyzed element where any deviation from the draft direction corresponds to particular values.
• The steps for conducting the draft analysis are as follows: switch the component's view mode to customized parameter mode, then select materials for the shading mode.
• Then, from the insert menu, open the featured draft analysis tool.
• Then drag and align the compass on the Tooling axis after clicking on the Use the Compass to define the current drafting direction.
• After that, click on the component to complete the draft analysis and lock the draft direction.

Draft the Dog House and analysis with the Side Core and their Axis:

Outside Draft for the Dog House:

• The ideal position for the outside draft is 1.45 degrees.
• The Z-axis ought to be the direction.

Inside Draft for the Dog House:

• The ideal position for the inside draft is 0.45 degrees.
• The X-axis ought to be the direction.

Creation Of Ribs:

• Thin, wall-like elements called ribs are frequently used in part geometry to offer internal support to walls or other features like bosses. Gussets are similar support elements that strengthen places like walls or bosses to the floor.
• When designing resins, the material or materials being utilized for the part should also be taken into account. Rib thickness should be a portion of the wall thickness, depending on the resin. For a broad breakdown of resin allocations, see the chart below.

Procedure for the Ribs:

• Creation Of ribs using a line to pad that and changes into thick and gives as neutral element 1mm.
• Create a new reference axis for ribs.

Draft Analysis of the Ribs:

• The ideal position for the outside draft is 0.45 degrees.
• The Y-axis ought to be the direction.

Creation Of Heat Stakes:

• Conceptually, the heat staking technique is very straightforward.

• Two or more components need to be joined together and at least one of them is made of a thermoplastic, heat, and pressure can be used to reform the plastic into a variety of forms or profiles that will hold the components together or join them

• By doing this, a strong, hardware-free bond is made, using the inherent strength of plastic to hold the finished assembly together.

Procedure for the heat Stakes:

• Create ribs for the heat stakes to hold the holding position of the cylinder type.
• Creation Of heat stake using a line to pad that and changes into thick and gives as neutral element 1mm.
• Create a new reference axis for both heat stakes & ribs.

Draft Analysis of the Heat Stakes:

• The ideal position for the outside and inside of the cylinder and ribs draft should be 0.45 degrees.
• The Y-axis ought to be the direction.

Locating Pins:

• Locating pins can be used to align two fixture elements or to locate a workpiece on a fixture.

Creation Of 2-Way & 4-Way Locators:

• Similar to a round pin in a slot, a 2-way locating pin restricts motion along one axis (or two degrees of Freedom).
• A 4-way pin restricts 4 degrees of freedom along 2 axes in a similar manner.
• A frequent use for a 4-way pin is a round locating pin that is concentrically positioned in a hole and adds to the piece's security.

2-Way Locator:

Procedure for the 2-Way Locator:

• Creation of a 2-Way locator by line and pad that changes into thick and gives as neutral element 1mm.
• There are 2 ribs where located.
• The longer one and the smaller one.
• Need a draft for corners 5mm for both ribs.

Draft Analysis of 2-Way Locators:

• The ideal position for the outside and inside of the cylinder and ribs draft should be 0.45 degrees.
• The Y-axis ought to be the direction.

4-Way Locator:

• The ideal position for the outside and inside of the cylinder and ribs draft should be 0.45 degrees.
• The Y-axis ought to be the direction.

Procedure for the 4-Way Locator:

• Creation of a 4-Way locator by line and pad that changes into thick and gives as neutral element 1mm.
• There are 2 ribs where located.
• Need a draft for corners 5mm for both ribs.

Draft Analysis of 4-Way Locators:

• The ideal position for the outside and inside of the cylinder and ribs draft should be 0.45 degrees.
• The Y-axis ought to be the direction.

Draft analysis of the final door trim Lower:

Conclusion:

• Using the door trim's Lower CLASS A surface, the created main tooling axis, and the CLASS B and C surfaces were successfully created.
• The examination of the Ribs, Heat stakes, Dog houses, 2-way, and 4-way locators, and the last part in its drafted and fixed on the entryway trim and concluded.