Joint Preparation: Cutting, Grinding, Cleaning, Tack Welding — PickAClass
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⏱ 3h 3m 📚 27 lessons 🎧 Audio version

Joint Preparation: Cutting, Grinding, Cleaning, Tack Welding

Half the Result is Before the Arc

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About this course

This course focuses on the essential preliminary steps for quality welding: joint preparation. You will learn the correct techniques for cutting, grinding, cleaning, and tack welding, which are fundamental for achieving a solid and precise final result. It is designed for anyone looking to improve the quality of their welds, from beginners to professionals. The program includes practical modules with targeted exercises to apply what you have learned. An AI-powered assistant will guide you in identifying common defects on prepared joints, providing immediate feedback.

Course contents

6 modules · 27 lessons · 3h 3m

1 Foundations and Safety
Understand why preparation is vital and how to work safely. 4 lessons · 28 min
  1. Why Preparation is 90% of Welding
    The quality of the final bead depends directly on how you prepared the metal.    6 min
  2. Safety First: Required PPE
    Protecting eyes, lungs, and skin during cutting and grinding.    8 min
  3. Anatomy of a Joint
    Learn technical terms: joint edges, root, gap, and bevel.    7 min
  4. Overview of Preparation Tools
    Get to know the tools you will use: grinder, files, brushes, and squares.    7 min
2 Precise Cutting
Obtain pieces of the correct size with clean cuts. 5 lessons · 34 min
  1. Choosing the Right Cutting Disc
    Difference between cutting and grinding discs for the angle grinder.    6 min
  2. Marking and Layout
    How to mark metal accurately using a scriber or chalk.    6 min
  3. Cutting Technique with an Angle Grinder
    Maintaining a straight line and managing sparks safely.    8 min
  4. Common Cutting Errors
    Avoiding crooked cuts or excessive overheating of the material.    6 min
  5. Exercise: 90-Degree Cut
    Guided practice in cutting a flat profile perfectly straight.    8 min
3 Grinding and Beveling
Shaping the edges to promote weld penetration. 5 lessons · 34 min
  1. Removing Cutting Burrs
    Eliminating sharp residues after cutting for a clean fit-up.    6 min
  2. What is Beveling?
    Creating a chamfer on the edges to allow the weld pool to penetrate.    7 min
  3. Bevel Angles and Dimensions
    Determining the correct angle (usually 30-37 degrees) based on thickness.    6 min
  4. Manual Grinding Technique
    How to move the grinder to achieve a uniform bevel.    7 min
  5. Exercise: Preparing a V-Bevel
    Practice creating a chamfer on a thick plate.    8 min
4 Metal Cleaning
Eliminating every contaminant that could ruin the weld. 4 lessons · 25 min
  1. Enemies of Welding: Rust and Mill Scale
    Why the metal must be shiny before starting.    6 min
  2. Mechanical Cleaning: Brushes and Flap Discs
    Using the right tools to remove oxidation and paint.    6 min
  3. Chemical Degreasing
    Removing invisible oils and greases with specific solvents.    6 min
  4. Exercise: Cleaning Metal to 'White Metal'
    Cleaning a 2cm area around the joint until it shines.    7 min
5 Tack Welding
Securing pieces in the correct position before final welding. 5 lessons · 35 min
  1. The Role of Tack Welding
    Maintaining alignment and counteracting thermal deformation.    6 min
  2. Alignment and Using Clamps
    Locking pieces with squares and clamps before tacking.    7 min
  3. How to Perform an Effective Tack Weld
    Creating small but penetrating tacks that do not obstruct the final bead.    7 min
  4. Tacking Sequence
    Where to place tacks to prevent the piece from warping.    7 min
  5. Exercise: Tacking a T-Joint
    Assembling two pieces at 90 degrees ensuring perpendicularity.    8 min
6 Quality Control and AI
Verifying the work and using technology to improve. 4 lessons · 27 min
  1. Common Defects Checklist
    Visually recognizing excessive gap, misalignment, or residual dirt.    7 min
  2. Photographing the Joint for Analysis
    How to take clear macro photos to allow the AI to see the details.    6 min
  3. Interacting with the AI Assistant
    Uploading the photo and interpreting feedback on detected defects.    7 min
  4. Post-Feedback Correction
    What to do if the AI detects an error: re-grinding or re-tacking.    7 min
Final project

The Perfect Joint: From Raw Bar to Ready Piece

You will take two pieces of raw metal, cut them to size, create bevels, clean them to a mirror finish, and tack them together while maintaining a 90-degree angle and a constant root gap.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
    Stuck on a lesson? Ask your built-in tutor anything, any time.
  • 🎧 Audio version included
    Learn on the go — no screen needed
  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
    Works anywhere, any device
  • 💸 14-day refund
    No questions asked
  • ⚡ Short & focused
    3h 3m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

P
PickAClass
Skills profile · verifiable
Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Joint Preparation: Cutting, Grinding, Cleaning, Tack Welding
Skills demonstrated
✓
Behavioral pattern analysis
Foundational
1.2 hrs
✓
Decision-architecture frameworks
Proficient
1.4 hrs
✓
A/B test design
Proficient
1.7 hrs
✓
Behavioral copywriting
Advanced
1.9 hrs
P
PickAClass — Name Surname
Joint Preparation: Cutting, Grinding, Cleaning, Tack Welding
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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