EP1302272A1
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EP
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An ultrasonic welding tip and apparatus with this tip
Assignee: Ford Global Technologies LLC
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Filing: 2002-09-09
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Granted: —
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Expires: 2022-09-09
Abstract
Abstract A sonotrode tip (14) and an apparatus for ultrasonically welding workpieces that reduces sonotrode adhesion during the ultrasonic welding process are disclosed. The sonotrode tip (14) has a specific surface configuration, including a curvilinear shaped outer surface (28) combined with a plurality of grooves (32) and lands. Due to the curvilinear surface, the depth of the grooves (32) gradually decreases near the outer edge or periphery (40) of a contact surface (31) of the sonotrode tip (14).
Inventors
- 👤 Jan Birger Skogsmo
- 👤 Amon Wexler
- 👤 Oludele Olusegun Popoola
- 👤 Larry Van Reatherford
- 👤 Edgar De Vries
- 👤 Daniel Edward Wilkosz
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 06:00
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/10; B23K20/106; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/306; B29C66/3062; B29C66/30621; B29C66/40; B29C66/41; B29C66/43; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81415; B29C66/81419; B29C66/81421; B29C66/81422; B29C66/81433; B29C66/81435; B29C66/83; B29C66/832; B29C66/8322
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
66 words
A sonotrode tip (14) for attachment to a sonotrode
(12) of an ultrasonic welding apparatus (10)for bonding
workpieces together using the sonotrode (12) and an anvil
(20) characterised in that the tip (14) has a plurality of
grooves (32) formed in a curvilinear shaped outer surface
thereof, the outer surface (28) cooperating with the grooves
to define a contact surface (31) for abutment against a
workpiece.
Claim 2
Dependent Claim
32 words
A sonotrode tip as claimed in claim 1 wherein the
depth of the grooves (32) formed in the outer surface
gradually decreases as they near the periphery of the
contact surface (31).
Claim 3
Dependent Claim
39 words
A sonotrode tip as claimed in claim 1 or in claim
2 wherein at least one of the length and the width of the
grooves (32) varies depending upon the location of the
grooves on the outer surface (28).
Claim 4
Dependent Claim
22 words
A sonotrode tip as claimed in any of claims 1 to 3
wherein the grooves (32) have a semicircular shaped cross-section
(50).
Claim 5
Dependent Claim
30 words
A sonotrode tip as claimed in any of claims 1 to 4
wherein lands (42) are positioned adjacent the grooves (32),
the lands (42) being narrower than the grooves (32).
Claim 6
Dependent Claim
39 words
A sonotrode tip as claimed in any of claims 1 to 5
wherein the tip (14) includes a coating on the outer surface
(28) thereof that reduces the propensity of the tip (14) to
stick to the workpiece (22).
Claim 7
Dependent Claim
46 words
A sonotrode tip as claimed in any of claims 1 to 6
wherein the tip (14) includes an insert (60) formed of one
of a tungsten material that reduces sticking of the tip (14)
to the workpieces (22, 24) and a hydrate material that
releases moisture.
Claim 8
Dependent Claim
42 words
An ultrasonic welding apparatus for bonding
workpieces (22, 24) together using a sonotrode (12) and an
anvil (20) characterised in that the apparatus includes a
sonotrode tip (14) as claimed in any of claims 1 to 7
attached to the sonotrode (12).
Claim 9
Dependent Claim
46 words
An apparatus as claimed in claim 8 wherein the
anvil (20) includes a pattern of grooves similar to that of
the tip wherein the pattern on the anvil (20)is offset from
the pattern of the tip (14) by an angle of between 15 and 20
degrees.
Claim 10
Dependent Claim
55 words
An apparatus as claimed in claim 8 or in claim 9
wherein the anvil (20) is rotatably mounted on a support
member (78) and is driveably connected to a motor (80), the
motor (80) being selectively operable to rotate the anvil
(20) about an axis (90) perpendicular to a contact surface
of the anvil (20).
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Cited
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Cited
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Cited
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