10. Coatings: Surface Roughness from Substrate to Topcoat

Module 10 of the Surface Texture and Tribology Short Course

5.00 (2 reviews)
Udemy
platform
English
language
Engineering
category
instructor
8
students
30 mins
content
Oct 2021
last update
$19.99
regular price

What you will learn

How paint finish texture is the product of the substrate and all finish layers

How paint appearance is affected by the spatial wavelengths of the surface texture

Surface parameters for defining appearance

Instruments for measuring paint finishes

Description

A painted finish can make the difference between a product looking low-quality or luxe. The appearance of a painted finish is affected by many factors, including the surface texture, viscosity, materials, etc.

In this module we look at how surface texture affects paint appearance. The lectures follow a particular issue involving paint in the automotive industry: the finish on the front and rear doors appeared differently, despite the panels being painted at the same time and all materials meeting specification. By analyzing the spatial wavelengths of the painted surface texture, manufacturers learned that they needed to monitor more than just Ra (average roughness): they needed to control the various wavelength bands that affect appearance.

Through this module we look at the analysis process, the lessons that were learned, and the practices and measurement instruments that the industry developed to better predict paint appearance. We also look at the specifications that were developed to control spatial wavelength bands on the incoming steel in order to produce repeatable final finishes.

This is Module 10 of the Surface Texture and Tribology Short Course. The full course is available on udemy, or you can select the individual course modules of interest to you. Enter "surface roughness texture tribology" in the udemy search bar to browse the full course and modules.

Screenshots

10. Coatings: Surface Roughness from Substrate to Topcoat - Screenshot_0110. Coatings: Surface Roughness from Substrate to Topcoat - Screenshot_0210. Coatings: Surface Roughness from Substrate to Topcoat - Screenshot_0310. Coatings: Surface Roughness from Substrate to Topcoat - Screenshot_04

Content

Introduction

Introduction - The Front Door/Rear Door Example
Spatial Wavelengths and Paint Appearance
Applying Surface Texture Parameters and Filtering for Painted Surfaces
Instruments for Measuring Paint Appearance
Surface Texture Software for Paint Appearance

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4337626
udemy ID
10/6/2021
course created date
10/9/2021
course indexed date
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