Band Saw Blade Coating Sequence for Uniform Set Tooth Thickness
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Solution Overview
Problem
Conventional band saw blade coating methods result in uneven thickness of the coat layer on set teeth due to differences in coating between the inner and outer surfaces, leading to suboptimal performance.
Innovation Solution
The method involves forming a coat layer on straight teeth before set processing, ensuring uniform thickness by using a spacer to maintain consistent coating during the coating process, and then setting the teeth, which allows for even coat layer distribution post-processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If coating is performed after set processing, then the tooth groups can be coated, but uneven thickness of the coat layer is generated on the set teeth
Solution Approach 1:
The patent applies preliminary action by performing the coating process before set processing. The coat layer is formed on straight teeth in advance, and then the teeth are set to create set teeth. This sequence ensures that the coating is applied to a flat surface, avoiding the shadow effect that occurs when coating after set processing, thereby achieving uniform coat layer thickness on the final set teeth.
2Manufacturing precision
If the band saw blade is wound into a spiral coil shape for coating, then coating can be performed on the tooth groups, but a band-like spacer must be lapped and wound together, increasing process complexity
Solution Approach 1:
The patent uses preliminary action by forming the coat layer on straight teeth before set processing. This allows the coating to be performed on a simpler, unwound blade structure rather than requiring complex spiral coil winding with spacers. The coating is applied in advance when the blade is in a more manageable state, reducing the complexity of the coating device and process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures a uniform coat layer thickness on the band saw blade, enhancing its performance by eliminating the unevenness typically found in conventional methods.
Implementation Method 1
performing a coat layer formation step of forming a coat layer on the teeth of an intermediate blade
Implementation Method 2
performing a coat layer formation step of forming a coat layer on the teeth of an intermediate blade
Data Source
AI summary
A band saw blade includes: a body portion having a band-like and an endless shape; a tooth portion in which a tooth group, which is a set of a predetermined number of teeth including a set tooth, is repeatedly formed on one edge side of the body portion; and a coat layer which is formed on a surface of the teeth of the tooth portion. The set tooth has a first indentation portion as a recessed portion in the coat layer on an outer surface in a set direction, and thickness of the coat layer in the recessed portion of the first indentation portion is thinner than that of the coat layer in portions other than the recessed portion.