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LaserStar

Dental Lab Laser Welding: Welding Next to Acrylic

Tips for Laser Welding Next to Acrylic - Partial Dentures

Laser welding can be performed near or next to acrylic successfully if the following techniques are followed.

Protect the Acrylic

In the event of firing the LaserStar next to or at an angle over the acrylic, unprotected acrylic can scorch, melt or even burn.  For this reason, we must first protect the acrylic.  Several processes can to be used to protect acrylic.



Bees Wax

Cover the acrylic with a thick coating of Bees Wax. The wax will protect the acrylic as it will dissipate the laser’s energy. The wax is also easily removed with steam heat.

Note: Do NOT use colored waxes; the color in the wax may attract the laser beam.



Poster Tack Putty

Cover the acrylic with a putty commonly used to hang posters. The putty will protect the acrylic, as it will dissipate the laser’s energy. The putty can easily be removed and used again.



Play-Doh Putty

Cover the acrylic with a play-do type putty. The moisture in the putty will protect the acrylic, as it will dissipate the laser welder's energy. The putty can easily be removed and used again.


Masking Tape

One or more layers of masking tape can be used to protect acrylic.

Mind the Hertz and Milliseconds

Hertz and milliseconds both equate to heat. Pulsing the laser with high frequency and high milliseconds may heat the surrounding metal too quickly causing heat transfer to affect the acrylic.

Tip: For best results, Keyhole Welds should be performed at a frequency of 0 to 5 Hertz. Adding material or hammering and smoothing should be performed at 5 Hertz with a lowered millisecond.

Use Burst Mode

Burst mode can be used to control the amount of heat applied to the working area by limiting the number of pulses delivered.

Use Your Sense of Touch

Use your fingers as a heat gauge. If the parts feel hot to the touch, allow them to cool before continuing.

Examples of Laser Welds Next to Acrylic

"I do not think we could do without our laser welder! All of our departments use it daily. We feel it has paid for itself many times over.”

Rob Allen, Lab Manager
Stern Empire Dental
(National Dentex Group)
Houston, TX


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Developer Tools

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8. 0.4742021 DBInterface.GetDataT show StoredProcedure LanguagePageCheck @PageUrl=/industries/dental-lab/case-studies/welding-next-to-acrylic-partial-dentures/default.aspx
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24. 0.6319119 SqlBASE.GetDataTable show Text WITH CatPath (ParentContentID, ContentID, Iteration) AS ( SELECT HTMLContent_XREF.ParentContentID, H show - 0.0469106
25. 0.6475363 SqlBASE.GetDataTable show Text SELECT ID, PageKey, PageTitle, PageHeading, MenuText, IsMenuItem, CASE WHEN ID = 99 THEN 1 WHEN ID show - 0.0156244
26. 0.6631558 DBInterface.GetDataT show Text SELECT TOP(1) ID, Content FROM HTMLMiscContent WHERE SiteID = 1 AND ContentKey = 'Header Phone Numbe show - 0.0156195
27. 0.6631558 DBInterface.GetDataT show Text SELECT TOP(1) ID, Content FROM HTMLMiscContent WHERE SiteID = 1 AND ContentKey = 'Header Phone Numbe show - 0
28. 0.6631558 DBInterface.GetDataT show Text SELECT TOP(1) ID, Content FROM HTMLMiscContent WHERE SiteID = 1 AND ContentKey = 'Header Phone Numbe show - 0
29. 0.6789114 DBInterface.GetDataT show Text SELECT TOP(1) ID, Content FROM HTMLMiscContent WHERE SiteID = 1 AND ContentKey = 'Header Phone Numbe show - 0.0156316
30. 0.6794396 DBInterface.GetDataT show Text SELECT TOP(1) ID, Content FROM HTMLMiscContent WHERE SiteID = 1 AND ContentKey = 'Header Phone Numbe show - 0
31. 0.6794396 DBInterface.GetDataT show Text SELECT TOP(1) ID, Content FROM HTMLMiscContent WHERE SiteID = 1 AND ContentKey = 'Header Phone Numbe show - 0
32. 0.6794396 SqlBASE.GetDataTable show Text SELECT HTMLHeaderLinks.LinkText, HTMLContent.PageHeading, HTMLContent.PageKey FROM dbo.HTMLHeaderLin show SiteID=1
0
33. 0.6950984 SqlBASE.GetDataTable show Text SELECT HTMLHeaderLinks.LinkText, HTMLContent.PageHeading, HTMLContent.PageKey FROM dbo.HTMLHeaderLin show SiteID=1
0.0156588
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35. 0.6950984 DBInterface.GetDataT show Text SELECT TOP(1) ID, Content FROM HTMLMiscContent WHERE SiteID = 1 AND ContentKey = 'Header - Custom Li show - 0
36. 0.7263488 DBInterface.GetDataT show StoredProcedure [dbo].[DefaultSearchAttributeGetByUserID] @g_UserID =cd11e002-1a68-4806-af65-421187f4d892
0.0156316
37. 0.7575992 DBInterface.get_oSQL show StoredProcedure [dbo].[VirtualSitePropertiesLoadBySiteID] @SiteID=1
0.0156311
38. 0.7575992 DBInterface.GetDataT show StoredProcedure [dbo].[VideoMenu_Load] - 0
39. 1.5965553 DBInterface.GetDataT show StoredProcedure [dbo].[Menu_Load] SiteID=1
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0.8389561
40. 1.5965553 SqlBASE.GetDataTable show Text SELECT TOP(1) HTMLArticles.ID AS ArticleID, HTMLContent.ID, PageTitle, PageMetaDesc, PageMetaKwords, show - 0
41. 1.6753678 SqlBASE.GetDataTable show Text SELECT TOP(1) HTMLArticles.ID AS ArticleID, HTMLContent.ID, PageTitle, PageMetaDesc, PageMetaKwords, show - 0.0156498
42. 2.4941731 DBInterface.GetDataT show StoredProcedure [dbo].[Menu_Load] SiteID=1
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StartingID=179
OwnersMenu=False
0.8019867
Total DB Execution Time 2.1452257
Cache Key Cache Value
__AppStartPage__~/_appstart.vbhtml ~/_appstart.vbhtml
Intelligencia.UrlRewriter.Configuration.RewriterConfiguration, Intelligencia.UrlRewriter, Version=2.0.0.6, Culture=neutral, PublicKeyToken=0573f3650687980d Intelligencia.UrlRewriter.Configuration.RewriterConfiguration
__AppStartPage__~/_appstart.cshtml ~/_appstart.cshtml
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    SqlBase.vb 0.4409352
    DeveloperTools.ascx 0
    Load Time:2.5586995s  |  Database Hits: 42