What Makes a Perfect Stud Weld?

Stud welding is a manufacturing operation that shows up in subtle ways throughout our world. From planes, trains, ships, and automobiles to bridges and even food-grade kitchen products, stud welding is a heavily utilized production tool that plays a part in making many items that we interact with daily. At Northland Fastening Systems (NFS), we support manufacturers relying on stud welding to get the job done. We provide comprehensive stud welding supplies, including welding tools for rent or purchase, studs in a range of dimensions with custom stud options available, stud welding accessories, and the skills and expertise of our own technicians. With our quality supplies and services, you can continually perform the perfect stud weld and fabricate with reliable, strong fastening systems.

 

If you are utilizing stud welding as a key manufacturing operation, it’s critical to understand what makes a perfect stud weld connection. If a weld is even slightly less than perfect, it’s not going to be effective, and it could cause some severe issues and potential safety concerns if put into a functional setting. To perform a perfect stud weld, there are three factors to take into account.

 

  1. Heat: Welding requires heat, but the temperature needed to get the perfect weld will vary depending on several factors. Typically, heat requirements depend on the kind of stud welding operation, the stud material and dimensions, the surface material, and any contaminants that might be on the surface, such as paint or rust. Calibrating the specific temperature needed to perform a perfect weld requires welders to be knowledgeable, experienced, and skilled. While the technical information concerning heat requirements is very detailed, it’s relatively simple to adjust heat specifications on most welding units.
  2. Pressure: The second factor involved in creating the perfect stud weld result is pressure. Even if you have the correct heat, if you have inaccurate pressure, the weld will be weakened. If you apply too much pressure, the weld could go too deeply into the base material and cause splattering, molten spread, misshapen welds, and other cosmetic defects. Additionally, too deep of a weld could create functional issues like cracking. Too light of a pressure application has its own issues and often creates a weld connection that isn’t fully formed. This can result in porous welds, brittleness, and cracks.
  3. Time: Finally, the time spent applying heat and pressure is equally important. Depending again on the weld type, materials, and other particle factors involved, the perfect stud weld will need to be applied for a specific time frame. Because the weld time varies within frames of fractions of seconds, it’s incredibly important to calibrate your tool to meet the necessary requirements. Failing to meet the right time requirements always means sacrificing the perfect stud weld.

 

To learn more about the other factors involved in creating a perfect stud weld, contact Northland Fastening Systems at (651) 730-7770 or request a quote online to get started with us today.

Quality Stud Welder Highlight: ACE-P100

At Northland Fastening Systems (NFS), we offer a broad range of stud-welding tools for rent or purchase, welding studs in comprehensive dimensions, custom stud options, stud-welding accessories, and the expertise of our own stud-welding technicians. For drawn arc, short cycle, and capacitor discharge (CD) stud-welding operations, it’s critical to get the stud welder and welding equipment that will not only fit the operation, but also fit your work schedule, portability, and on-site power needs. When it comes to choosing the right stud welder that will meet your production needs and be calibrated to worksite electrical sources, NFS experts are here to help. We can work with you to determine exactly what your production needs are and which stud-welding tool would be the best option for you to rent or purchase.

 

For hand-held, non-automated stud welding, there are a wide variety of tools that could be useful in your arsenal. If you’re working with CD stud welding operations, one highly effective, reliable tool is the TRUWELD ACE-P100 stud welder model. The ACE-P100 is a hand-held CD stud welder that incorporates state-of-the-art technologies into a compact unit that is both rugged and portable. With a new user interface and system design, the ACE-P100 can weld CD pins in sizes up to 10 gauge and CD studs with dimensions up to #10 with more efficiency and speed than ever before.

 

Specifications: The ACE-P100 is 12.5″ x 10.1″ x 6.0″, making it a lightweight yet powerful piece of portable equipment. It can weld up to 15-30 pins per minute, and it uses a universal power input of 85-250 VAC at 50/60 hertz. The recharge time between pin welds is less than one second, and it has built in thermal/voltage protections. The gun tip is engaged with contact and a hand trigger.

 

Features: The most recent updates to the ACE-P100 features include its intuitive touchscreen, set-point discharge, universal input voltage, contact and trigger indicators, thermal and voltage protection, and low-input voltage capabilities that allow continued operations with long extension cords. These features all make the ACE-P100 more portable, easier to operate, and more readily adaptable to a range of worksite power capabilities. Along with its new features, the ACE-P100 design still includes an increased airflow for better weld cycles, tough interior construction that holds up to rough handling and transport, a rugged grade exterior casing that protects the interior from on-site contaminants, an ergonomic hand tool that reduces operator fatigue, added internal spring for adjusting the spring pressure in the hand tool, and the ability to swap the hand tool from standard tapered chuck configuration to B, CI, or Euro collet configurations.

 

The ACE-P100 is one of many high-quality stud-welder tools available for rent or purchase at NFS. Contact Northland Fastening Systems at (651) 730-7770 or request a quote online to learn more about the stud welding products we supply.

Catering Equipment Made with CD Stud Welding

At Northland Fastening Systems (NFS), we offer quality stud welding supplies to a broad range of customers. From welding studs to stud welding tools for various types of welding processes, our expert technicians can help you get what you need to finish a project. Whether you’re working with drawn arc welding methods or capacitor discharge (CD) welding processes, NFS has a comprehensive selection of tools for rent or purchase, welding studs in many dimensions, custom stud options, and welding accessories that our customers working in many industries need. One industry in which CD stud welding, in particular, is key is the food equipment industry. Food grade welding is a highly specialized process that requires training and the right set of tools.

 

Within the food industry, the catering profession requires its own set of tools and equipment designed to transport, store, and serve food safely and without compromising quality. Because CD stud welding is a rapid, efficient, and extremely clean operation, it’s an ideal tool for manufacturing a number of different types of catering equipment. For example:

 

  1. Transportation equipment:
    1. Outdoor and portable coolers
    2. Insulated tray carriers
    3. Warming trays
    4. Totes and other nonheated/cooled carriers
    5. Storage boxes
    6. Large-scale transportation ware, such as castored shelving units
  2. Food preparation equipment:
    1. Offsite pre-event food prep equipment like ovens, stoves, and other standard commercial kitchen appliances
    2. Chef station appliances for onsite cooking, such as hot plates and induction burners
    3. Portable grills
    4. Temperature-controlled holding cabinets
    5. Dry holding cabinets
    6. Onsite food transportation units for moving food during an event
  3. Serving equipment:
    1. Portable trays and shelves
    2. Chafers
    3. Utensils
    4. Food pans
    5. Heated or cooled trays
    6. Ice containers
    7. Hot and cold beverage dispensing equipment
    8. Portable bars
    9. Coffee stations
  4. Sanitation equipment:
    1. Hand washing stations
    2. Dish washing stations
    3. Garbage cans and other food waste processing equipment
    4. Transportation shelves and tools for dirty dishes
    5. Portable sink systems for events with no water hookup
  5. Energy supplies:
    1. Many catered events don’t have energy sources at the location, and caterers often need to bring generators and other portable power supplies along with them.
    2. Battery powered equipment is also a key part of catering energy supplies.

 

Catering equipment is just one small part of the food grade stud welding industry. CD stud welding is highly conducive to food grade equipment because of its ability to eliminate marking on the opposite side of the weld. This alone limits problem areas where bacteria and germs can collect. Food grade welding with CD stud welding tools help our customers fabricate streamlined stainless steel products that can be easily sanitized.

 

Whether you’re manufacturing catering equipment or equipment for other areas of the food industry, NFS has the CD stud welding supplies you need. Contact us at (651) 730-7770 or request a quote online to get started with us today.

Revisiting Basic Terminology for Stud Welding Supplies

If you’re just getting into the stud welding world, there may be some terms thrown around that you’re unfamiliar with. When you break down each type of stud welding and the supplies and tools used, there are some nuances that will arise. Whether you’re just starting out or if you’ve been in the stud welding game for years, you can find all your stud welding supplies and technical support with Northland Fastening Systems.

 

The basic terminology of stud welding can be broken into two categories of drawn arc stud welding and capacitor discharge (CD) stud welding. Within these two types of stud welding, there are variations to operations and specialized tools that can be used to get many effects.

 

Drawn Arc Stud Welding

 

  1. Drawn arc: These welding tools use both flux and a ceramic ferrule. The flux creates a clean weld zone as the tip of the gun makes contact with the surface material, and the ceramic ferrule contains the molten weld point to prevent splatter. Drawn arc welds using flux and a ferrule create the strongest stud bond.
  2. Gas arc: Gas arc welding replaces a ceramic ferrule with inert gas, and it typically does not use a flux to prepare the surface (though some gas arc weld processes still use a flux ball). Gas arcs are used commonly in automated welding operations where precision and speed limit the need for flux. This provides a quick, cost effective weld that saves labor because it does not require chipping off a ferrule when the weld is completed.
  3. Short arc: For operations using high currents and requiring fast weld times, short arc welding can be a reliable process. Short arc welds can tend to be weaker or more porous because they do not use flux or ferrule, but in the right application, they can be key.

 

CD Stud Welding

 

  1. Contact CD welding: This process places the tip of the stud against the weld surface while the weld occurs. The current vaporizes the tip of the stud and an arc is created between the stud and surface. This arc heats both stud and surface metals, and the molten components are connected.
  2. Gap CD welding: Gap welding is a faster process than contact welding. The tip of the stud is poised above the surface as the arc is formed and then pressed against the surface as both become molten.

 

If you are just starting out in the stud welding industry, you can use these terms as a base reference for areas you want to study or try as you learn and become a more professional welder. To learn more about the comprehensive stud welding supplies we provide, contact Northland Fastening Systems at (651) 730-7770. Request a quote online to get started with us today.

5 Factors to Consider in the CD Stud Welding Process

Stud welding is a multi-faceted manufacturing operation that can be used in many different settings for a wide range of results. If you plan to work with stud welding as a fastening system, you’ll have many factors to consider before choosing the exact tools you need. The primary factor you need to take into account is whether you’ll be using CD stud welding or drawn arc stud welding.

 

No matter which one you choose, you can rely on Northland Fastening Systems to provide the tools and technical support you need to accomplish any stud welding process.

 

Both drawn arc and CD stud welding processes have their own various factors to consider and navigate through to achieve an end result of a successful, strong weld connection. When it comes to the CD stud welding process, there are five main factors to take into account for any project:

 

  1. Size: Before starting your stud welding process, you need to have the right size studs for the job. If your job requires stud dimensions larger than ⅜”, you may need to consider working with drawn arc welding tools because CD studs typically don’t exceed that dimension.
  2. Surface: The surface you weld to must also be considered. CD stud welding performs excellently with plate or sheet surfaces, but it can become difficult to create a strong connection with a rough surface because the weld time is much shorter than with other stud welding processes. As with all welding, your surface must also be clear of contaminants like rust, oil, or dirt.
  3. Time: CD stud welding is a very rapid fastening operation. Arcs are generated for as little as 0.01 seconds. Because of this, the timing and penetration of the weld is critical. To create a successful weld, you need to correctly calibrate your tool. This calibration depends on the material you’re welding to, the dimensions of the stud, and the material of the stud.
  4. Position: To create a successful weld and a clean, well-made product, you need to know exactly where you’ll place the weld point. Even a millimeter shift can affect the quality of your welded product. Many welders will mark the point of the weld with a punch mark in the center of the area of the weld, but even this can be inaccurate because, if the punch is too deep, you can shorten the stud length by as much as 50%.
  5. Materials: Welding materials are also key in creating a successful weld. This includes the surface material, any surface plating or coatings, the weld materials, and how the physical properties will react to a weld. Some materials, like high-carbon steel, are too hard to penetrate with a common CD welding stud.

 

For any stud welding process, these kinds of factors and the properties of the materials and tools you’ll use are important. To learn more about CD and drawn arc welding, contact Northland Fastening Systems today at (651) 730-7770 or request a quote online.

 

Contact versus Gap CD Stud Welding

Stud welding is a manufacturing operation that is highly saturated in use across industries. Not only does stud welding provide fast, strong fastening systems, but it also creates clean, consistent connection points for a variety of stud and surface materials. You can find everything you need regarding tools, studs, pins, and other welding accessories at Northland Fastening Systems (NFS). In addition to a comprehensive selection of products, NFS also offers expert guidance via the knowledge of our skilled stud-welding technicians. From drawn arc to capacitor stud (CD) stud welding, NFS has the supplies and service that production teams of any size need to get their projects completed quickly and effectively.

 

Drawn arc stud welding is an excellent option for large-scale welding of heavy-duty studs on a variety of steels and other metals, but CD stud welding may be an even better option for welders working quickly with smaller dimension studs on surfaces that need to look clean.

 

CD stud welding uses a quick-draw welding tool that is either a handheld gun or an automated production tip. There are two types that can be used, depending on the materials being welded together and the production speed needed.

 

  • Contact CD Stud Welding: This is a slightly more common type of CD stud welding that physically presses the stud against the surface material while an electrical current heats the two metals. A stud is inserted on the tip of the welding tool and positioned against the flat base surface. This allows the electrical current to flow through the welding tool to the surface material, heating and rendering molten metal beneath the stud. The current also vaporizes the tip of the stud, allowing it to stick to the molten surface and cool to form a strong fastened connection. This process typically occurs in just 0.012 seconds. Contact welding is ideal for steels and other metals that have a slightly higher melting point than others.
  • Gap CD Stud Welding: Gap CD Stud Welding involves a different gun and the use of a magnetic coil, or solenoid, that activates and lifts the stud away from the workpiece. It still draws an arc and plunges back into the weld pool under significantly less spring pressure than contact stud welding. This is beneficial for aluminum and stainless steel where it’s critical to not leave a mark on the backside of the workpiece. We often see this with sign manufacturers who want a clean appearance.

 

Whether you are using contact or gap CD stud welding as a primary fastening system at your worksite, NFS has what you need to get the job done. Contact Northland Fastening Systems at (651) 730-7770 to learn more about stud welding supplies. Request a quote online to get started with us today.

Time, Pressure, Current, and Other Specifications for CD Stud Welding

There are several types of stud welding used in a wide range of manufacturing procedures. The use of CD stud welding as a fast, clean, and strong fastening system is a highly effective technique for rapid fastening of a broad variety of structures from lightweight assemblies to composite material construction.

 

If you’re using CD stud welding as a primary fastening system for any size project, you can find studs in a wide variety of dimensions, including custom sizes, stud welding tools for rent or purchase, all the accessories you might need, and our own stud welding technicians’ expertise at Northland Fastening Systems today.

 

Utilizing CD stud welding as a primary fastening system for your construction procedures can be one of the most efficient methods at hand if used correctly. While CD stud welding is a quick, easy way to form strong connections, it also requires specific calibrations depending on the tool, stud dimensions, and materials used. CD welding processes change effectiveness whenever specifications are altered. These specifications include:

 

  • Time of weld: The speed of a CD weld can affect the strength of the weld. If a weld is performed too quickly, it can create a weak connection. If a weld is too long, however, it can produce a weakened connection point with too deep of a penetration and unattractive spattering of molten stud and surface material.
  • Pressure of weld: CD stud welding requires a very specific pressure through the welding gun to provide a perfect connection with a strength greater than stud and surface material alike. Too great a pressure calibration creates a spattering and too deep penetration. Too little pressure provides a weak connection that is not fully formed.
  • Current/power of tool: Just like the time and pressure, a specific electrical current is required to perform a strong weld connection. The current required depends on the materials being welded together and the dimensions of the stud. This is true of the time and pressure needed as well, but the current needed will vary more greatly in direct reliance on the metals used.
  • Materials used: Because time, pressure, and current change based on the materials used, those metals are a critical specification to take into account if you want to create a strong weld connection with a CD tool. Effective CD welding can be used to weld low carbon steel, mild steel, stainless steel, aluminum, brass, or alloys specifically formulated for CD stud welding.

 

CD stud welding can be the key to open many manufacturing doors if you have the information you need to determine what studs to use and what to calibrate your tools to. Find our CD welding stud and CD weld pin selection online or contact us to request customized stud dimensions.

 

To learn more about the stud welding processes, contact Northland Fastening Systems today at (651) 730-7770, or request a quote online to get started.

Inspection Practices for CD Stud Welding Quality

Stud welding of all types can be one of the most effective manufacturing operations in a wide range of industries when it is applied correctly. While drawn arc welding is key for large-scale construction with heavier studs, capacitor discharge (CD) stud welding is an excellent operation for clean, rapid welds used in lightweight construction or smaller assemblies. With Northland Fastening Systems (NFS), you can find studs for drawn arc and CD stud welding in all dimensions, a comprehensive selection of welding tools for rent or purchase, complete welding accessories, and the expertise of our skilled welding technicians. An important part of any stud-welding operation that our technicians can provide guidance and support for is the weld inspection process.

 

The weld inspection process for CD stud welding can take several steps depending on factors of the weld condition, the stud dimensions, and the materials used. The two primary methods of inspecting the quality of a CD weld connection are visual and mechanical diagnostics.

 

Visual Diagnostics: To inspect a CD weld visually, there are several conditions a welder should look for. First, if there is any splattering of the metal, the weld may be weakened due to a too-hot weld. Next, look for a lack of metal melted around the base of the stud. Too little metal shows the weld was cold. Additionally, if there is any reverse-side marking on the component opposite the weld, there may have been too much pressure or heat during the weld. Finally, if the stud is indented or sunk into a divot in the base material, the stud is weakened by too much pressure or heat in the weld.

 

Mechanical Diagnostics: Mechanical inspections depend entirely on several aspects of the weld. This includes the stud dimensions, the material of the stud, the material of the base material, the thread size of the stud, the time and pressure of the weld operation, and the heat/voltage of the welding tool. To determine the yield load, ultimate tensile load, yield torque, ultimate torque, and shear strength of any CD weld, all the preceding listed aspects of the weld must be taken into consideration.

 

To perform a weld successfully with long-term reliability, both visual and mechanical inspection practices must be put in place in your production process. With the comprehensive supply of CD stud welding and drawn arc stud welding tools Northland Fastening Systems has available, you can implement stud welding into your operations. Contact NFS at (651) 730-7770 today, or request a quote online to get started with us today.

Avoiding Common Defects with CD Stud Welding

Stud welding is an operation that many industries utilize because of its diverse benefits to a wide range of production processes. While drawn arc stud welding is key for heavy-duty studs, load-bearing composite building, and other large-scale construction, CD stud welding has an equal frequency of use in different types of construction.

 

If you’re using CD stud welding in your production process, you will gain the benefits of rapid, economical, low-energy welding that provides a clean weld with no reverse-side marking. With the help of Northland Fastening Systems technical support and our selection of all the tools, studs, pins, and accessories you might need for CD stud welding, you can get your job done with ease and quality.

 

CD stud welding is a form of resistance welding, unlike drawn arc welding. Arc welding is a fusion welding process that often requires a filler material and frequently leaves a slag from the flux used that has to be cleaned to finish the product. CD stud welding doesn’t require a filler material and it leaves a clean weld that won’t need finishing after the weld is done.

 

When done correctly, CD stud welding is a fast and easy process that leaves a pristine, strong weld. However, there are some defects that can occur when CD stud welding is not performed accurately or with the right materials:

 

  • Spread of molten metal from the weld site is a common issue when weld pressure is too low, the current is too high, or the weld is timed incorrectly. Molten metal expulsion can also be evidence of surface contamination.
  • Spattering of metal is another sign of too high a current. It creates excess heat that can cause explosive spray and loss of metal at the weld site, weakening the weld overall.
  • Cracked weld connections are a clear alert to a weak weld. These cracks often occur due to lack of pressure during the weld leading to an incomplete or porous connection. Inadequate pressure during the weld leads to a low tensile strength at the connection point.
  • Indentations at the weld site are another result of incorrect pressure and/or current. With too much pressure, the current decreases and a poor weld connection is formed because of the low pressure. Welding studs indented into surface material even slightly are a sign of too high of pressure and too low of current/temperature.
  • Misshapen weld spots are also a common defect with incorrectly performed CD stud welding. A strong, accurate weld should have a perfectly circular weld mark. Bloated, smushed, or otherwise misshapen weld spots are a result of contamination or misaligned electrodes in the welding tool.

 

These defects can be easily avoided when you choose to work with NFS products and take advantage of our technicians’ expertise whenever questions arise. To learn more about our CD stud welding products and other stud welding supplies, contact NFS at (651) 730-7770 today. Request a quote online to get started on your stud welding project now.

 

Application of Shear Connectors in Thru-Deck Stud Welding

Stud welding is a versatile process with many industrial applications. While stud welding is often primarily used in exterior or visible interior installations, it is also a key operation for large-scale construction. Shear connectors and other anchor bar systems provide necessary strengthening of a structure and critical support against stresses. If you are fabricating a system with metal decking or other weld-thru metal structures, Northland Fastening Systems (NFS) can provide the shear connectors, anchor bars, welding tools, and any other studs or accessories you need to get the job done. When it comes to thru-deck stud welding operations, NFS offers the technical support and tools needed.

 

Composite construction applications like thru-deck welding requires careful consideration of each material used in the process and understanding of the process itself. When it comes to the composite building of structural beams, galvanized decking, and concrete, shear connectors welding studs are key for long-term structural integrity.

 

The included image shows a three-dimensional cross section of a weld-thru decking application. The shear connecter studs welded directly through the galvanized decking material fasten it to steel I-beams. A rebar webbing is overlaid for support and flexibility of the final layer of concrete finishing the composite system. As a complete decking system, this composite structure can be utilized in a range of applications, but is primarily used in the construction of multilevel buildings with steel beam skeletons.

 

The use of shear connector welding studs is critical in this type of composite construction system. If you are working with thru-deck weld construction processes, NFS can provide comprehensive shear connectors in varying dimensions, including stud diameter and length.

 

For general-purpose thru-deck composite welding, our shear connector studs have a minimum tensile strength of 61,000 psi (420 MPa) and a minimum yield strength of 49,000 psi (340 MPa). For shear connectors that will be used in composite beam construction like the processes used in multilevel buildings, our specialized studs have a minimum tensile strength of 65,000 psi (450 MPa) and a minimum yield strength of 51,000 psi (350 MPa). NFS also offers custom lengths for both types of shear connectors with any of our available diameter.

 

Not only do the connector studs fasten galvanized decking to structural beams, they are also key in shear load bearing. The minimum tensile and yield strength of each stud works together to support entire buildings upward of 100 stories. The system of a composite beam construction increases the flex range and support strength of the building as a whole, which allows it to react to movements of the earth plates, the wind, and other natural elements; weight inside the building; and changes in molecular size with temperature shifts. In every composite structure, shear connectors are key components.

 

To learn more about weld-thru decking and the use of stud welding in composite construction, contact NFS at (651) 730-7770 today, or request a quote online to get started with us today.