公开(公告)号：US20020056304A1

公开(公告)日：2002-05-16

申请号：US09987859

申请日：2001-11-16

Applicant: SNECMA MOTEURS

Inventor： Benoit Jean, Henri Berthelet ,  Francis Lucien, Guy Chareyre ,  Willy Lionel Fradin ,  Hakim Hoffman ,  Stephane Michel Kerneis ,  Marie-Christine Marcelle Ntsama-Etoundi ,  Guillaume Francois, Roger Simon

IPC: B21J001/00

CPC classification number: C21D7/06 ,  B24B1/04 ,  B24B39/00 ,  B24B39/026 ,  B24C1/10 ,  F01D5/286 ,  Y10T29/479

Abstract: The invention relates to an apparatus and to a method for the surface treatment and compressive prestressing by peening of a wall of at least one oblong cavity formed in a part, said cavity opening to the outside via a lateral mouth and having two ends presenting frontal openings. The wall of the cavity is ultrasonically peened by mobilizing a plurality of beads in a chamber delimited by said wall of said cavity, a vibratory surface closing off said mouth of said cavity, and closing-off means closing off said openings, by means of a sonotrode excited by means for producing ultrasonic oscillations. The method and the apparatus are particularly intended for treating a turbine disk comprising a number of axial recesses formed in the periphery of said disk and having wall portions which diverge from each mouth.

Abstract translation: 本发明涉及一种用于表面处理和压缩预应力的装置和方法，所述装置和方法用于通过在一部分中形成的至少一个长方形腔的壁进行喷丸处理，所述腔经由侧向开口向外部开口，并且具有两端呈现正面开口 。 通过在由所述空腔的所述壁限定的室中移动多个珠粒，通过将所述空腔的所述口闭合的振动表面和通过所述开口闭合所述开口的闭合装置来将所述空腔的壁进行超声波喷丸处理 超声波激发通过用于产生超声波振荡的装置激发。 该方法和装置特别用于处理涡轮盘，该涡轮盘包括形成在所述盘的周边中的多个轴向凹部，并具有从每个口分开的壁部分。

公开(公告)号：US20020124402A1

公开(公告)日：2002-09-12

申请号：US09987860

申请日：2001-11-16

Applicant: SNECMA MOTEURS

Inventor： Benoit Jean Henri Berthelet ,  Francis Lucien Guy Chareyre ,  Willy Lionel Fradin ,  Hakim Hoffmann ,  Stephane Michel Kerneis ,  Marie-Christine Marcelle Ntsama-Etoundi ,  Guillaume Francois Rocher Simon

IPC: B23P006/00

CPC classification number: B24C5/005 ,  B24B1/04 ,  B24B39/00 ,  B24B39/026 ,  B24C1/10 ,  C21D7/06 ,  F01D5/286 ,  F05D2200/24 ,  Y10T29/479 ,  Y10T29/49318 ,  Y10T29/4932 ,  Y10T29/49321 ,  Y10T29/49323

Abstract: A method for extending the life of the attachments that attach blades to rotors, particularly for aerojet engines. Such a method is notable in that it employs intensive ultrasonic peening of the grooves and of the roots of the blades, this peening being performed with an Almen intensity at least equal to F8A, so as to increase the compressive prestress in the contact surfaces without increasing the roughness of these surfaces.

Abstract translation: 一种用于延长将叶片连接到转子上的附件的寿命的方法，特别是用于航空发动机。 这样一种方法是值得注意的，因为它采用刀片的根槽和根部的强化超声波喷丸，这种喷丸以至少等于F8A的Almen强度进行，以增加接触表面的压缩预应力而不增加 这些表面的粗糙度。

公开(公告)号：US20020069687A1

公开(公告)日：2002-06-13

申请号：US09987857

申请日：2001-11-16

Applicant: SNECMA MOTEURS

Inventor： Benoit Jean Henri Berthelet ,  Francis Lucien Guy Chareyre ,  Willy Lionel Fradin ,  Hakim Hoffmann ,  Stephane Michel Kerneis ,  Marie-Christine Marcelle Ntsama-Etoundi ,  Guillaume Francois Rocher Simon

IPC: B21J001/00

CPC classification number: B24B39/00 ,  B24B1/04 ,  B24B39/026 ,  C21D7/06 ,  F01D5/286 ,  Y10T29/479

Abstract: The invention relates to a method for the ultrasonic peening of annular recesses for the attachment of blades to a rotor rim, these recesses including a blade introduction opening. According to the method, a plurality of beads is placed on a vibratory surface of a sonotrode, arranged in an intermediate position in a sleeve having opposed closing-off means capable of sliding in the recess, the introduction opening is placed facing the sonotrode, the sonotrode and the sleeve are moved together toward the introduction opening into a peening position in which the closing-off means face the recess ends opening into said opening, then the rotor rim is turned about its axis so as to bring the closing-off means into a first end of the recess so as to form a closed chamber containing the beads. The rim is turned and the vibratory surface is vibrated to mobilize the beads within the chamber, thereby peening the recess.

Abstract translation: 本发明涉及一种用于将叶片附接到转子轮辋的环形凹部的超声喷丸的方法，这些凹槽包括叶片引入开口。 根据该方法，将多个珠子放置在超声波发生器的振动表面上，该超声波发生器的振动表面布置在具有能够在凹部中滑动的相对闭合装置的套筒的中间位置，引入开口面向超声波发生器放置， 超声波发生器和套筒一起朝向引入开口移动到其中闭合装置面向通向所述开口的凹入端的喷丸位置，然后转子轮缘绕其轴线转动，以使封闭装置进入 凹部的第一端，以形成包含珠的封闭室。 轮辋转动并且振动表面振动以在室内移动珠，从而对凹部进行硬化。