APPARATUS AND METHOD FOR WRITING A PATTERN IN A SUBSTRATE
摘要
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.
申请公布号
WO2012160335(A8)
申请公布日期
2014.06.26
申请号
WO2012GB00463
申请日期
2012.05.25
申请人
RLS MERILNA TEHNIKA D.O.O.;RENISHAW PLC;KOGEJ, PETER;JEZERSEK, MATIJA;MOZINA, JANEZ;BABNIK, ALES
发明人
KOGEJ, PETER;JEZERSEK, MATIJA;MOZINA, JANEZ;BABNIK, ALES