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Ultrasonic Copper Aluminum Metal Wire Harness Terminal ...

Vehicle wire harness "welding" most commonly refers to using ultrasonic welding for high-volume production due to its speed, reliability, and low-resistance connections without solder. However, for individual repairs, soldering with proper technique, such as using rosin-core solder and heat-shrink tubing, is the standard method. Less common methods for specific repairs or the use of other technologies like for chassis or structural components might also be relevant in a broader automotive context.

How it works: High-frequency vibrations cause friction between the wires, generating heat that creates a molecular bond without melting the material.
Advantages: Produces strong, low-resistance, and reliable connections in a short amount of time. It is a solder-free, spark-free, and energy-efficient process suitable for automation.
Common uses: Widely used in the automotive industry for splicing and terminating wires, with specific parameters controlled by software for quality assurance.

Application of ultrasonic welding in Auto wire harness production
May 3, 2023 — Blog. ... I. Ultrasonic welding principle: Ultrasonic wiring harness welding is a commonly used process of car wire wel...
Aichie Tech Electronics Co Ltd
Automobile Harness and Wire Repair, How to Solder and ...
Wire Harness Products and Samples | TECH-SONIC, Inc.
Ultrasonic metal welding as a joining technology has many diverse use cases, with wire harness manufacturing being amongst the mos...
TECH-SONIC, Inc.

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Automobile Harness and Wire Repair, How to Solder and ...

YouTube Power Probe USA

Jul 11, 2014

How A Wiring Harness Splice is Ultrasonically Welded ...

YouTube Lectric Limited

Sep 16, 2013

How to Make Proper Automotive Wiring Harness Repairs ...

YouTube WeWrench

Sep 7, 2022

Making Automotive Wiring Harnesses

YouTube The Fab Forums

Mar 15, 2022

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Wire Harness | Schunk Sonosystems

Schunk Group

https://www.schunk-group.com › applications › wire-ha...

Schunk Group

https://www.schunk-group.com › applications › wire-ha...

Ultrasonic metal welding for reliable wiring harness connections: the ideal solution for automotive, construction, and appliance industries.

People also ask

What type of solder for automotive wiring?

For automotive wiring, use rosin-core electrical solder that is 60% tin and 40% lead (60/40), or a similar lead-free option, and never use acid-core or metal-working silver solder. Rosin-core solder contains a flux that helps the solder flow smoothly, creating a strong, reliable joint.

Recommended solder

Rosin-core electrical solder:
This is the standard choice for automotive wiring repairs.
Leaded (60/40): 60/40 tin-lead solder has a lower melting point, which allows for better flow and a stronger joint.
Flux:
Ensure the solder has a rosin-core, or if using a flux-less solder, use a separate rosin flux to help clean the wire and prevent oxidation.

Use mechanical connections first:
Before soldering, it is best to secure the wires together with a mechanical connection, such as a crimp, to prevent the wires from breaking due to vibration.
Heat the joint, not the solder:
Apply heat to the wires themselves, and then touch the solder to the heated joint to allow the solder to flow into the wires.
Ensure the connection is clean:
Proper cleaning and preparation of the wire's surface are crucial for a good solder joint.
Use heat shrink tubing:
After soldering, protect the joint from moisture and short circuits by covering it with heat shrink tubing.

Why you should NEVER solder wires on your car.
Jan 1, 2021 — now before every time I use it I tin it just like that to make sure that the tip stays nice now I got my unit set to ab...
YouTube ·
Irvin Ortega

Soldering DC Wires - Mike Holt's Forum
May 13, 2024 — Little Bill said: What type of solder should be used to solder automotive wiring under the hood of a vehicle? Probably...
Mike Holt

Basics Of Soldering Wire Connections In Your Car - Master Appliance
You'll want a 60-40 rosin-core solder, Popular Mechanics explained. This means it is 60 percent tin and 40 percent lead. The rosin...
Master Appliance

Automobile Harness and Wire Repair, How to Solder and protect wires
Jul 11, 2014 — as we're doing here make sure to add heat shrink tubing on both ends of the repair. before you splice and solder bend ...
YouTube ·
Power Probe USA

When soldering heavy copper wire for automotive wires. What kind of ...
Jun 2, 2023 — The big battery leads I'm talking about. Dan Leach and 6 others. 7. 󰤦 61. 󰤧 Nathan Kline. I typically use 60/40 rosin c...
Facebook ·
I See You Don't Know Shit About Welding

How to solder and protect automotive wiring - Capri Tools
Mar 22, 2023 — When choosing solder for automotive wiring, you should avoid metal-working silver solder. This type of solder is made ...
Capri Tools

How to Solder & Crimp Automotive Wires - Speedway Motors
Aug 9, 2024 — Rosin-core solder is the most commonly found and used solder for automotive wiring use. Commonly used Solders include l...
Speedway Motors

(Help) Tips to solder automotive wiring harness - Reddit
Feb 26, 2024 — Car wiring is all crimped, not soldered. Use quality crimp terminals with a good crimp tool. ... Have you considered u...
Reddit

A Short Guide to Choosing Solder Wire - Mayer Alloys
In the past lead-based solder has been an industry standard, although the health problems associated with lead had made it a less ...
Mayer Alloys

Best Soldering Wire for Auto Electrical Repairs Guide - JustAnswer
Jul 18, 2013 — For automotive wiring, use rosin-core solder wire designed for electronics. Leaded solder melts at lower temperatures,
JustAnswer

How To Choose Types of Solder to Use For Electronic Circuits?
Oct 23, 2012 — Make sure to stay away from acid core solder as this is intended for plumbing, NOT electronics.
Build Electronic Circuits

Know How Notes: Soldering Electrical Circuit Repairs » NAPA Blog
May 8, 2019 — To complete the soldered joint electrical repair, it must be protected from moisture intrusion as well as shorting to a...
NAPA Blog

5 Things to Consider When Wiring a Car Audio System
Sep 4, 2024 — 10. Use Heat Shrink Tubing Do: Use heat shrink tubing to insulate soldered connections. Reason: Heat shrink provides a ...
WesBell Electronics

5 Best Practices for Using Solder Lug Terminals in High-Performance Electronics
Best Practice #3: Watch your technique When soldering a terminal lug, your goal is a clean, mechanically strong joint with smooth ...
Zierick Manufacturing Corporation

All About Jumper Wires Types and Applications
Mar 7, 2024 — Heat Shrink Tubing: After soldering, apply heat shrink tubing over the soldered joint. Heat it carefully to provide ins...
Robocraze

Why you should NEVER solder wires on your car.

Jan 1, 2021 — now before every time I use it I tin it just like that to make sure that the tip stays nice now I got my unit set to ab...

YouTube ·

Irvin Ortega

Soldering DC Wires - Mike Holt's Forum

May 13, 2024 — Little Bill said: What type of solder should be used to solder automotive wiring under the hood of a vehicle? Probably...

Mike Holt

Basics Of Soldering Wire Connections In Your Car - Master Appliance

You'll want a 60-40 rosin-core solder, Popular Mechanics explained. This means it is 60 percent tin and 40 percent lead. The rosin...

Master Appliance

Automobile Harness and Wire Repair, How to Solder and protect wires

Jul 11, 2014 — as we're doing here make sure to add heat shrink tubing on both ends of the repair. before you splice and solder bend ...

YouTube ·

Power Probe USA

When soldering heavy copper wire for automotive wires. What kind of ...

Jun 2, 2023 — The big battery leads I'm talking about. Dan Leach and 6 others. 7. 󰤦 61. 󰤧 Nathan Kline. I typically use 60/40 rosin c...

Facebook ·

I See You Don't Know Shit About Welding

How to solder and protect automotive wiring - Capri Tools

Mar 22, 2023 — When choosing solder for automotive wiring, you should avoid metal-working silver solder. This type of solder is made ...

Capri Tools

How to Solder & Crimp Automotive Wires - Speedway Motors

Aug 9, 2024 — Rosin-core solder is the most commonly found and used solder for automotive wiring use. Commonly used Solders include l...

Speedway Motors

(Help) Tips to solder automotive wiring harness - Reddit

Feb 26, 2024 — Car wiring is all crimped, not soldered. Use quality crimp terminals with a good crimp tool. ... Have you considered u...

A Short Guide to Choosing Solder Wire - Mayer Alloys

In the past lead-based solder has been an industry standard, although the health problems associated with lead had made it a less ...

Mayer Alloys

Best Soldering Wire for Auto Electrical Repairs Guide - JustAnswer

Jul 18, 2013 — For automotive wiring, use rosin-core solder wire designed for electronics. Leaded solder melts at lower temperatures,

JustAnswer

How To Choose Types of Solder to Use For Electronic Circuits?

Oct 23, 2012 — Make sure to stay away from acid core solder as this is intended for plumbing, NOT electronics.

Build Electronic Circuits

Know How Notes: Soldering Electrical Circuit Repairs » NAPA Blog

May 8, 2019 — To complete the soldered joint electrical repair, it must be protected from moisture intrusion as well as shorting to a...

NAPA Blog

5 Things to Consider When Wiring a Car Audio System

Sep 4, 2024 — 10. Use Heat Shrink Tubing Do: Use heat shrink tubing to insulate soldered connections. Reason: Heat shrink provides a ...

WesBell Electronics

5 Best Practices for Using Solder Lug Terminals in High-Performance Electronics

Best Practice #3: Watch your technique When soldering a terminal lug, your goal is a clean, mechanically strong joint with smooth ...

Zierick Manufacturing Corporation

All About Jumper Wires Types and Applications

Mar 7, 2024 — Heat Shrink Tubing: After soldering, apply heat shrink tubing over the soldered joint. Heat it carefully to provide ins...

Robocraze

How much does automotive welding cost?

Types

Welding Project Type	Average Cost Range
Structural steel	$500–$2,500
Decorative metalwork	$200–$900
Automotive repairs	$100–$600
Furniture fabrication	$250–$800

2 more rows

•

Aug 15, 2025

How Much Does Welding Cost? [2025 Data] - Angie's List

Angie's List

https://www.angi.com › articles › welding-cost

Angie's List

https://www.angi.com › articles › welding-cost

Feedback

What is the best welding process for automotive wiring ...

BONNE Ultrasonic Welder

https://www.bonneultrasonicwelder.com › Blog

BONNE Ultrasonic Welder

https://www.bonneultrasonicwelder.com › Blog

Automotive wiring harness welding standards: The ratio of the weld width to the weld height should be between 1:1 and 2:1; No discoloration on the wires;

Discussions and forums

Wiring harness splicing - Soldering or Crimping Method

Mechanics Stack Exchange ·

2 answers

· 8 years ago

Wiring harness splicing - Soldering or Crimping Method

Mechanics Stack Exchange ·

2 answers

· 8 years ago

A body shop set the dash harness on fire while welding on the A pillar. ...

Reddit ·

r/Justrolledintotheshop

· 300+ comments

· 2 years ago

A body shop set the dash harness on fire while welding on the A pillar. ...

Reddit ·

r/Justrolledintotheshop

· 300+ comments

· 2 years ago

Welding on Vehicles? what is the thing called to hook up to your battery so ...

Reddit ·

r/Welding

· 9 comments

· 3 years ago

Welding on Vehicles? what is the thing called to hook up to your battery so ...

Reddit ·

r/Welding

· 9 comments

· 3 years ago

Ultrasonic Wire Welding

Herrmann Ultrasonics

https://www.herrmannultrasonics.com › wire-terminal

Herrmann Ultrasonics

https://www.herrmannultrasonics.com › wire-terminal

Ultrasonics is used to weld copper or aluminum cables with cross sections ranging up to 150 mm² to the terminals. Ultrasonic welding has proven to be a ...

Wire Harness Assembly

TELSONIC Ultrasonics

https://www.telsonic.com › fileadmin › news

TELSONIC Ultrasonics

https://www.telsonic.com › fileadmin › news

PDF

Today wire harness production plants use a network control specific harness fabrication.

8 pages

In-Depth Look at Ultrasonic Wire Splicing

Wiring Harness News

https://wiringharnessnews.com › in-dept-look-at-untras...

Wiring Harness News

https://wiringharnessnews.com › in-dept-look-at-untras...

Ultrasonic metal welding is a crucial process for all aspects of wire harness assemblies due to its ability to provide a reliable bond to meet all low and high ...

Ultrasonic Wire Harness Spot Welder Machine YH-X2020A

Kunshan Yuanhan

https://www.yuanhanequip.com › product › ultrasonic-w...

Kunshan Yuanhan

https://www.yuanhanequip.com › product › ultrasonic-w...

It is mainly used for lap welding of automobile wiring harness, wire head forming, wire mutual welding, multiple wires and butt joints, as well as mutual ...

Ultrasonic automotive wire harness welding can be used ...

Altrasonic

https://www.altrasonic.com › ultrasonic-automotive-wire-...

Altrasonic

https://www.altrasonic.com › ultrasonic-automotive-wire-...

The ultrasonic wire harness welding machine can weld the wire harness forming of 0.5mm²-50mm². It is mainly used in automobile wiring harness connecting wire ...

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Wire Harness Products and Samples

TECH-SONIC, Inc.

https://tech-sonic.us › wire-harness

TECH-SONIC, Inc.

https://tech-sonic.us › wire-harness

TECH-SONIC provides solutions for a diverse range of wire harness applications including wire splicing, ring termination, mak termination, and cable termination ...

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How A Wiring Harness Splice is Ultrasonically Welded ...

How to Make Proper Automotive Wiring Harness Repairs ...

Making Automotive Wiring Harnesses

Wire Harness | Schunk Sonosystems

Wire Harness Repair - FindPigtails.com

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How Much Does Welding Cost? [2025 Data] - Angie's List

Welding: Do Welders Have the Proper Wire? - BodyShop Business

What is the best welding process for automotive wiring ...

Ultrasonic Wire Welding

Wire Harness Assembly

In-Depth Look at Ultrasonic Wire Splicing

Ultrasonic Wire Harness Spot Welder Machine YH-X2020A

Ultrasonic automotive wire harness welding can be used ...

Wire Harness Products and Samples

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Making Automotive Wiring Harnesses

Wire Harness | Schunk Sonosystems

Wire Harness Repair - FindPigtails.com

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How Much Does Welding Cost? [2025 Data] - Angie's List

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Wire Harness Assembly

In-Depth Look at Ultrasonic Wire Splicing

Ultrasonic Wire Harness Spot Welder Machine YH-X2020A

Ultrasonic automotive wire harness welding can be used ...

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