A heat exchanger includes a plurality of flat heat transfer tubes each having a flat cross-sectional shape, a flat outer side surface, and an interior defining a passage through which a fluid flows, the plurality of flat heat transfer tubes being arranged with the flat outer side surfaces facing each other, and a plurality of corrugated fins each having a wavy shape, each of the plurality of corrugated fins being disposed between and joined to flat heat transfer tubes of the plurality of flat heat transfer tubes that are adjacent to each other. Each of the plurality of corrugated fins has portions that correspond to peaks of the wavy shape and have lower flexural rigidity than other portions of the corrugated fin.

The present invention relates to a heat sink manufacturing method and system and, more specifically, to a heat sink manufacturing method and system for providing support so that a heat sink with enhanced heat dissipation efficiency can be quickly and efficiently manufactured. To this end, the heat sink manufacturing method comprises the steps of: determining, on the basis of information about the angle formed between a skiving cutter and a processing surface of an object, at least one cutting line in one direction from one side point on the processing surface; individually deriving, on the basis of the material characteristics of the object and the shape of a heat sink to be manufactured, fin-specific forward and backward lengths of the skiving cutter according to the separation distance of the at least one cutting line separated from the one side point; separating, on the basis of the fin-specific forward and backward lengths, at least one auxiliary fin and one main fin from the object by sequentially moving the skiving cutter forward and backward along the at least one cutting line; and processing the one main fin so that same stands upright relative to a base plate on which the object is stacked, so as to manufacture a heat sink formed in the shape of a plurality of fins branching upward from the one main fin.

A heat exchanger may be manufactured using an apparatus which includes a rotating body configured to be disposed at one side of heat exchange fins having an insertion groove having one side formed to be depressed and placed to be downwardly directed to be rotatable. An inner side of the insertion groove of transferred heat exchange fins are seated on the rotating body. The apparatus also include a rotating blade configured to be connected to the rotating body to be rotatable together with the rotating body. The rotating blade supports the other side of the heat exchange fins to prevent the heat exchange fins from being deviated from the rotating body.

An information handling system (IHS) has a heatsink including cooling fins each having a plate structure and attached to the base in spaced parallel arrangement for receiving a first air flow that is in parallel alignment to the conductive surface. The heatsink includes a tunnel formed through the cooling fins perpendicularly to the first air flow. The IHS provides cooling air to one or more heatsinks without thermally shadowing other compute components as well as providing a second flow of cooling air to downstream component/s via the tunnel of each heatsink.

A heat exchanger includes a spine fin strip wrapped onto a conduit in a helical pattern. A first plurality of spine fins of the spine fin strip extends from a base of the spine fin strip, and a second plurality of spine fins of the spine fin strip is bent relative to the spine fins of the first plurality of spine fins. A related method for forming a heat exchanger is also provided.

A protrusion forming device includes a holding portion holding an object that is be processed, a tool bit having a cutting portion capable of cutting an object held by a holding portion, and a drive portion capable of driving the tool bit. The tool bit is movable along a cut-in pathway so that the cutting portion is inserted into the object. The cutting portion is movable along a further-cut pathway so as to form a protrusion part that is cut in a linear shape and is connected to the object. The tool bit continuously contacts the protrusion part while moving along a forming pathway such that the protrusion part extends perpendicular to an outer surface of the object.

A heat exchanger and a method of manufacturing the same are provided. With the method, a tube may be inserted into a through hole formed in at least one fin coated with a filler metal, and the tube and a fin collar of the at least one fin may be joined through the filler metal by a brazing processing. A flange may not be formed on or at a top of the at least one fin collar, which protrudes vertically from a central longitudinal plane of the at least one fin. The tube may be made of aluminum (Al), and an interval between an outer circumferential surface of the tube and an inner circumferential surface of the fin collar of the at least one fin may be approximately 0.1 mm or less. Accordingly, contact resistance occurring when fabricating a fin-tube heat exchanger using a mechanical tube expansion method may be reduced, and heat transfer performance of the heat exchanger may be improved because grooves formed within the tube may not be deformed.

In one aspect, an indirect heat exchanger comprising a plurality of fins having openings and a plurality of tubes connecting the fins. The indirect heat exchanger has spacings between the fins that permit a first fluid to flow therethrough. The fins have outer portions outward of the tubes to be contacted by the first fluid as the first fluid flows through the spacings. The tubes have interiors aligned with the openings of the fins to permit a second fluid to flow through the tubes and the openings of the fins. The fins have inner portions extending about the openings to be contacted by the second fluid. The fins are configured to transfer heat between the first fluid and the second fluid via direct contact between the outer portions of the fins and the first fluid and direct contact between the inner portions of the fins and the second fluid.

In a method for producing a heat sink, a semifinished product of a first metal material is placed into a die and a material layer of a second metal material of a higher thermal conductivity than the first metal material is releasably connected to a pressure surface of a punch. The punch is brought into contact via the material layer with the semifinished product in the die. The heat sink is formed by pressing the first metal material of the semifinished product by the punch through openings of the die fins of the heat sink are formed and into a peripheral rebate of the punch a peripheral side wall of the heat sink, wherein the material layer is connected over its entire surface to the first metal material of the semifinished product. The punch is released from the material layer, and the heat sink is ejected from the die.

Disclosed is a heat sink manufacturing method including the steps of: determining at least one cutting line in one direction from one side point on the processing surface; individually deriving fin-specific forward and backward lengths of the skiving cutter according to the separation distance of the at least one cutting line separated from the one side point; separating, on the basis of the fin-specific forward and backward lengths, at least one auxiliary fin and one main fin from the object by sequentially moving the skiving cutter forward and backward along the at least one cutting line; and processing the one main fin so that same stands upright relative to a base plate on which the object is stacked, so as to manufacture a heat sink formed in the shape of a plurality of fins branching upward from the one main fin.