LumberJocks

Reply by Nicholas Hall

  • Advertise with us

Posted on Are Most Benchtops Woefully Underclamped during Glueup? (probably not)

View Nicholas Hall's profile

Nicholas Hall

339 posts in 708 days


#1 posted 599 days ago

@crank: In my family business PRC Industrial Supply in Porland ME, we used airbags to generate pressure for the vulcanization of conveyor belts. The system used four 10”x6” H beams and an airbag. We would charge the bag to 100psi and it would exert 151,200 pounds of force on the splicing area heated to 300 degrees. That’s how you splice 6 foot wide industrial conveyor belts in paper mills. It works like a champ, but the splicing press is wee bit costly as you suggested!

@David Craig: It’s possible that I read the article wrong but I don’t think so. What he does say specifically in the article is that it is very nearly impossible to “starve a glue joint” with too much pressure, because most people have never seen enough clamps to accomplish this feat, let alone own enough clamps to do it themselves.

Pounds per square inch seems fairly unambiguous. If you have 384 square inches, and you need to generate 900 psi for a glue joint, you need to generate 345,000 pounds of force to accomplish this. At least that’s how I interpret it.

Are there any engineers out there with access to Fine Woodworking.com who can take a look? I’m really curious at this point.

-- Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read. -Groucho Marx


DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com

Latest Projects | Latest Blog Entries | Latest Forum Topics

GardenTenders.com :: gardening showcase