Title:
APPARATUS AND METHOD FOR WRITING A PATTERN IN A SUBSTRATE
Document Type and Number:
WIPO Patent Application WO/2012/160335
Kind Code:
A8
Abstract:
A method and apparatus are described for forming a pattern comprising one or more markings on a substrate (6). The method comprises the step of forming each marking by locally heating the substrate (6), for example using a fibre laser (2). A step is also performed of monitoring the temperature of the substrate, e.g. using a temperature sensor (10), whilst each marking is being formed. The method may be used to form a magnetic encoder scale on a stainless steel substrate having a high content of martensitic material. The local heating causes the martensitic material to be transformed into austenitic material. An encoder scale made using the method is also described.
Inventors:
KOGEJ PETER (SI)
JEZERSEK MATIJA (SI)
MOZINA JANEZ (SI)
BABNIK ALES (SI)
JEZERSEK MATIJA (SI)
MOZINA JANEZ (SI)
BABNIK ALES (SI)
Application Number:
PCT/GB2012/000463
Publication Date:
June 26, 2014
Filing Date:
May 25, 2012
Export Citation:
Assignee:
RLS MERILNA TEHNIKA D O O (SI)
RENISHAW PLC (GB)
KOGEJ PETER (SI)
JEZERSEK MATIJA (SI)
MOZINA JANEZ (SI)
BABNIK ALES (SI)
RENISHAW PLC (GB)
KOGEJ PETER (SI)
JEZERSEK MATIJA (SI)
MOZINA JANEZ (SI)
BABNIK ALES (SI)
International Classes:
B41M5/26; B23K26/03; C21D1/09; C21D11/00; G01P3/486; G01P3/487
Attorney, Agent or Firm:
DUNN, Paul, Edward et al. (Patent DepartmentNew Mills,Wotton-under-Edge, Gloucestershire GL12 8JR, GB)
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