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Tog-L-Loc®

 

Description

Tog-L-Loc® is sheet metal joining or "clinching" made simple. Whether joining plain, painted or coated sheet metal parts with BTM's patented Tog-L-Loc® sheet metal joining system there are no fasteners, sparks, or fumes. Fast, economical and consistent, the Tog-L-Loc® joining technique is used worldwide to assemble automobile parts, appliances and more. From simple tooling to high speed automation, BTM provides solutions for your sheet metal assembly requirements.

 


to Assemble Sheet Metal Parts like these:

  • partition.jpg
  • can_lights.jpg
  • floor_pan.jpg
  • roof_bow.jpg
  • positionable_duct.jpg
  • gasket.jpg
  • gas_tank_straps.jpg
  • duct_work.jpg
  • furnace_shell.jpg
  • dishwasher.jpg
  • brake_bracket.jpg
  • washer.jpg
  • refrigerator.jpg
  • heat_shield.jpg
  • microwave.jpg
  • sunroof.jpg
  • filing_cabinet.jpg
  • hood.jpg
  • garbage_disposal.jpg
  • package_tray.jpg
  • dryer_vent.jpg
  • battery_terminal.jpg
  • gas_tank_shield.jpg
  • app_frame.jpg
  • truss.jpg
  • electrical_box.jpg
  • ac_tube.jpg
  • app_components.jpg
  • steering_adjust.jpg
  • galv_duct.jpg

with this Clinch Equipment:

For an Existing Press: Manually Positioned:
equipment_brakes equipment_die_sets equipment_hand_held_units equipment_universal_presses
Units for Robots/Fixtures/Systems: Custom Solutions:
equipment_units equipment_stand_alones equipment_systems

can Tog-L-Loc® join your part?

Step 1

Click Here to fill out a short form 
A BTM Application Engineer will contact you to let you know if Tog-L-Loc® will clinch your material.

Step 2

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Drawings, solid models, or even hand sketches can be sent by email, Fax, or uploaded to our FTP Site.

Contact a BTM Application Engineer by phone at 810-364-4567, by fax at 810-364-4125 or email This email address is being protected from spambots. You need JavaScript enabled to view it.

BTM is on Eastern Time (same as New York) and is open from 8:00-4:30PM (1630)

What is Tog-L-Loc®?

Tog-L-Loc® is a cold-forming clinch process which uses a special punch and die to form a strong interlocking joint within the metals themselves. The result of the process is a round, button shaped extrusion on the die side of the assembly, and a small cylindrical cavity on the punch side. The joint is comprised wholly of the sheet metals that were joined. No external fasteners, or welding is utilized in the process.

  • Joins plain, coated, and dissimilar metals
  • No rivets, screws, or other fasteners
  • Eliminates spot welding operations
  • Long tool life: 300,000 joints common
  • Joins in a single press stroke
  • Non-Destructive testing with a simple gage
  • Strong and highly fatigue resistant
  • Leakproof joints
  • No sparks, fumes, or soot

 

 

Tog-L-Loc FEM

Finite Element Analysis showing a cross section of a Tog-L-Loc® joint being created.

 

tl_info_big

Typical Tooling Configuration.
(Click for larger view)

 

tl-iso-crossection

Cross Section view of a completed Tog-L-Loc® joint

 

punch_button

Die side (left) and Punch side (right) views of completed Tog-L-Loc® joints

 

pre-paint

Punch side view of joints created in pre-painted metal

 

dissimilar

Die side view of joints created in a part using a dissimilar metal combination

 

How it works

A typical Tog-L-Loc® joint is created in under a second and features three basic steps as shown in this cross section diagram:

tl123 tl-iso-crossection

Step 1 (Clamps): A punch side stripper clamps the metals to be joined.

Step 2 (Draws): Once the metals have been clamped by the stripper, a punch draws a section of the metals into a die.

Step 3 (Locks): A Tog-L-Loc® die has moving blades which expand, allowing the metals to flow into a strong interlock. The end result is a vibration resistant, leakproof joint which was created without the use of external fasteners.


Where It Is Used

 

The Tog-L-Loc® joining method is relied upon and trusted by industries around the world manufacturing a diverse range of products. From pre-painted microwave housings to delicate solar collectors, automotive hoods, heat shields, ductwork, garage doors, small electrical components, and even steel frame housing, Tog-L-Loc® has become a trusted name in sheet metal joining. Contact BTM today to see how Tog-L-Loc® can benefit your application.

Here are just a few examples of industries using Tog-L-Loc®. Click an industry to see product examples.

Example Automotive
Example Appliance
Example Hvac
Example Furniture
Example Building
Example Electrical Components

 

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DMC Firewall is developed by Dean Marshall Consultancy Ltd