Tutorial: Modeling Welding

Creating Accurate Welding

01. Introduction

Welding adds necessary realism and is very simple to make. This guide will give you a basic walk through on how to model TIG welding. You can download the final model here.

Example A

Welding on the inside corner of stool

Welding close up

Example B

Welding on the inside corners of the legs

Welding close up. Using VRayDistanceTex for dust effect

03. Welding Examples

Here are good examples of what TIG welding should look like. But it is important to make sure your weld matches the product imagery. For a tutorial on creating more rough, MIG-like welding, take a look at this video.

02. Modeling Walkthrough

a. Creating the Weld

i. The process begins with creating a basic shape that best matches the products weld, in the case of Example A, we will start with a cylinder.

i. For Example B, an Oval shape was used to create a more rounded weld.

ii. Make sure it is small enough to fit in the corner you are ‘welding’.

iii. You will want a decent amount of faces on the shape, below are the parameters used for the cylinder below.

iv. Create copies of the shape that will match up with the overall length of the space being filled by the weld.

a. A good practice is to make a larger amount of copies than needed and just delete the ones you don’t need later.

v. The edge of the new cylinders should be about ¾ of the way from the edge of the original to its center.

vi. Once the copies have been created, highlight them all and Center the Pivot to Object.

vii. With all of the cylinders still selected, change the Pivot to Local and rotate the cylinders about 15°-18°, or until it matches the referenced weld.

viii. Change the Pivot back to View

ix. Convert into Editable Poly.

b. Bend Modifier

i. With all the objects still selected, add the Bend Modifier.

ii. The specifications below produced the bend in the image below, but tweak these numbers as you see fit.

iii. You might need to change the Bend Axis depending on the orientation of your object.

c. Freeform Tools

i. Once you are happy with your Bend, collapse the selections into one object and realign the pivot to the Center of the Object, same process as before.

ii. At this point, you should place your weld into the corner of the object that needs to be welded.

iii. Add an OpenSubdiv Modifier.

iv. Add an Edit Poly modifier and go to your Freeform Tools.

v. These tools will allow you to add the melted/fluid look that all welds have.

vi. To find out how these tools work, simply hover your mouse over each and a video will show you what they do.

vii. The most effective tool to create welding is Smudge.

viii. There are two ways to adjust the Size and Strength of these tools.

a. Once selected, a box will appear on the left of your max screen, here
you can enter and adjust number values.

b. Size: SHIFT + CTRL + Clicking and dragging the mouse up and down.

c. Strength: SHIFT + ALT + Clicking and dragging the mouse up and down

ix. Once you have Relax selected with the desired strength and size, click and drag over the welding to begin adding the melted effect.

x. Once you have the welding close to the reference, apply the material of the welded object to the welding.

xi. An FFD modifier can also be used to help mold the weld to the object you are ‘welding’.

Please note: You might need to rotate the Lattice points of the FFD so it is vertical and uniform with the welding.