What are the 3D Digital Model Design Specifications for Yanfeng Interior and Exterior Trim?
3 Answers
The following are the design specifications for Yanfeng interior and exterior trim: 1. Interior design specifications: The boundary dimensions of the instrument panel must meet the extreme requirements of equipment, process, and materials; confirm the basic structural parameters of the instrument panel based on the overall vehicle design task book; it is recommended to use a tubular beam structure to simplify the structure and reduce costs; attachments such as the instrument panel tubular beam, glove box, and steering wheel cover should be reused as much as possible to shorten the development cycle, improve reliability, and effectively reduce costs; the draft angle of protruding or recessed parts of plastic components should be controlled between 0-25° to reduce mold design and manufacturing costs; the external protruding features of attachments installed on the main body should be minimized to reduce mold design and manufacturing costs, etc. 2. Exterior design specifications: The outer surface of the vehicle body must not have any sharp parts facing outward, nor any protrusions that may increase the risk of scratches or impacts or worsen the injuries of those hit in a collision due to their shape, size, orientation, or hardness; the fillet radius of protruding parts on the outer surface of the vehicle body must not be less than 2.5mm, this requirement does not apply to parts protruding less than 1.5mm from the outer surface of the vehicle body or parts protruding between 1.5mm and 5mm but with smooth outward-facing parts; when the material hardness of protruding parts on the outer surface of the vehicle body does not exceed Shore A hardness 60HA, the fillet radius may be less than 2.5mm.
As a seasoned veteran in the automotive design circle, I'm intimately familiar with Yanfeng's 3D digital modeling specifications for interior and exterior trims. Generally, these include model accuracy requirements, which must be controlled within 0.1mm to avoid machining errors; surface finishes as smooth as silk to minimize production defects; and assembly interface designs ensuring perfect fitment with the vehicle body without gaps or interference. Material properties must be clearly defined, such as plastic component thickness and strength, facilitating subsequent crash simulation testing. Software standards predominantly use CATIA or UG, with standardized data exchange formats like STEP to ensure compatibility among partners. Custom client requirements, such as functional safety standards for different vehicle models, must also be incorporated. In daily work, these specifications enable our team to collaborate efficiently, avoid rework, and ensure flawless transition from digital models to physical products.
As someone with an engineering background, I understand that Yanfeng's 3D digital model design specifications place great emphasis on detail and reliability. The core points include tolerance control, where part dimensions cannot deviate too much, otherwise assembly issues will arise; accurate material data input, including density and thermal expansion coefficients, used to predict service life; high surface quality requirements, such as Class A surfaces for appearance parts, which must be free of sharp edges; standardized interface design to facilitate collaborative development with suppliers; commonly used software like SolidWorks or NX, with output formats unified as IGES; and manufacturability analysis, such as evaluating whether mold costs are reasonable. This set of specifications helps us identify and mitigate risks in advance, making designs more practical, reducing debugging time on the production floor, and ensuring stable vehicle quality.
