US3596045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machining process using radiant energy
Assignee: Messer Griesheim GmbH
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Filing: 1966-03-23
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Granted: 1971-07-27
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Expires: 1986-03-23
Abstract
Abstract A process using a beam of radiant energy, such as electron beams and laser beams, for removing material from a workpiece wherein the workpiece is made of a material which has a low degree of energy absorption for the kind of radiant energy used consists in finely distributing an auxiliary material having a high beam absorbing characteristic within the workpiece material in at least the portion thereof from which material by absorbing heat builds up vapor pressure which carries the adjacent molten material out of the work zone.
Inventors
- 👤 Karl-Heinz Steigerwald
- 👤 Dieter Konig
- 👤 Joachim Geissler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:56
CPC Classifications
B; B23; B23K; B23K15/00; B23K15/0046; B23K15/0053; B23K15/0073; B23K15/08; B29; B29C; B29C59/00; B29C59/16; B29C71/00; B29C71/04; C; C03; C03B; C03B29/00; C03C; C03C23/00; B29C35/00; B29C35/02; B29C35/08; B29C35/0866; B29C2035/0877; B29C65/00; B29C65/02; B29C65/14; B29C65/1403; B29C65/1429; B29C65/1432
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
107 words
A process for performing work on a workpiece with a beam of charged particles, wherein the workpiece is made of a material which has a low degree of energy absorption for the beam, comprising finely distributing within at least a portion of said workpiece an auxiliary material having a high beam absorption characteristic and being selected to develop a high vapor pressure at the working temperature, and directing a beam of charged particles at such workpiece portion for creating a relatively high vapor pressure in the working zone within said portion of the workpiece and thereby performing material removing work on the working zone of the workpiece.
Claim 2
Dependent Claim
107 words
A process for performing work on a workpiece with a beam of charged particles, wherein the workpiece is made of a material which has a low degree of energy absorption for the beam, comprising finely distributing within at least a portion of said workpiece an auxiliary material having a high beam absorption characteristic and being selected to develop a high vapor pressure at the working temperature, and directing a beam of charged particles at such workpiece portion for creating a relatively high vapor pressure in the working zone within said portion of the workpiece and thereby performing material removing work on the working zone of the workpiece.
Claim 3
Dependent Claim
18 words
The process as recited in claim 1, wherein said beam of radiant energy is a beam of electrons.
Claim 4
Dependent Claim
61 words
A process for material removing machining a plastic workpiece material with a beam of charged particles to form micro-sized openings therein, comprising distributing throughout the plastic workpiece finely divided beam absorbing auxiliary material to impart a higher beam absorption characteristic to the plastic workpiece, and directing a beam of charged particles at the plastic workpiece for performing material removing work thereon.
Claim 5
Dependent Claim
61 words
A process for material removing machining a plastic workpiece material with a beam of charged particles to form micro-sized openings therein, comprising distributing throughout the plastic workpiece finely divided beam absorbing auxiliary material to impart a higher beam absorption characteristic to the plastic workpiece, and directing a beam of charged particles at the plastic workpiece for performing material removing work thereon.
Claim 6
Dependent Claim
20 words
The process as recited in claim 3 wherein the distributing step comprises distributing metallic oxide power throughout the plastic workpiece.
Claim 7
Dependent Claim
25 words
The process as recited in claim 3 wherein the auxiliary material is distributed in the plastic workpiece in the form of a fine metallic powder.
Claim 8
Dependent Claim
19 words
The process as recited in claim 3 in which the auxiliary material is uniformly distributed throughout the plastic workpiece.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |