模具專業(yè)英語(yǔ)全套課件完整版ppt教學(xué)教程最新最全

1、(第四版)模具專業(yè)英語(yǔ) Mold Professional English Press Process and Die DesignMold Materials The Injection Mold DesignManufacturing Technology of Mold Unit OneConstitution Unit TwoUnit ThreeUnit ThreeQuotation and Contract for Mold&Die Unit ThreeUnit One Mold Materials Lesson 2 Mold MaterialsLesson 3 Selection

2、of the SteelLesson 1 Polymers The word polymer literally means“many parts”. A polymeric solid material may be considered to be one that contains many chemically bonded parts or units which themselves are bonded together to form a solid.Two industrially important polymeric materials are plastics and

3、elastomers.Lesson 1 Polymers參考譯文 聚合物的字面意思是“很多部分”。高分子固體物質(zhì)被認(rèn)為是一種由很多化學(xué)分子和元素聚合成的固體物質(zhì)。兩種重要的工業(yè)高分子材料是塑料和橡膠。Plastics are a large and varied group of synthetic materials which are processed by forming or molding into shape. Plastics can be divided into two classes,thermoplastics and thermosetting.Lesson 1 Po

4、lymers塑料是一種應(yīng)用廣泛、種類繁多的合成物，可以通過(guò)沖壓或注塑加工成型。塑料可分為兩類:熱塑性塑料和熱固性塑料。參考譯文The basic building block of a plastic is the polymer molecule，a long chain of covalent bonded atoms. Secondary bonds then hold groups of polymer chains together to form the polymeric material. Lesson 1 Polymers塑料的基本構(gòu)成是聚合物分子，一條由共價(jià)鍵原子組成的長(zhǎng)鏈

5、。次級(jí)紐帶將聚合物群體連在一起形成高分子材料。參考譯文 Synthetic fabrics are man-made copies of natural fabrics. Synthetic fibers do not occur in nature as themselves but are usually derivatives of petroleum products. Lesson 1 Polymers合成纖維織物是人工仿造天然織物的產(chǎn)物。合成纖維通常是石油產(chǎn)品的衍生物，本身性質(zhì)不會(huì)發(fā)生改變。參考譯文 In a liquid crystal phase，the polymer mol

6、ecules have a certain degree of order. In the simplest case，the Nematic phase，the molecules generally point in the same direction but still move around with respect to one another as would be expected in a liquid. Lesson 1 Polymers液晶狀態(tài)下聚合物分子有一定的排列順序。最簡(jiǎn)單的情況下，在向列相，分子通常向同一方向移動(dòng)，但也會(huì)像在液體中那樣相互周向運(yùn)動(dòng)。參考譯文New

7、WordsPolymeric adj.聚合的 elastomer n.彈性體 synthetic n.合成物 Thermoplastics n.熱塑性塑料 molecule n.分子 insulation n.絕緣品 liquid crystal display 液晶顯示屏 NotesA polymeric solid material may be considered to be one that contains many chemically bonded parts or units which themselves are bonded together to form a sol

8、id.Plastics can be divided into two classesthermoplastics and thermosetting plastics，depending on how they are structurally and chemically bonded.高分子固體物質(zhì)被認(rèn)為是一種由很多化學(xué)分子和元素聚合成的固體物質(zhì)。 that語(yǔ)句修飾的是前面的“one”，“considered to be.”詞組是“被認(rèn)為是”的意思。塑料可分為兩類:熱塑性塑料和熱固性塑料，這取決于它們的結(jié)構(gòu)和化學(xué)合成。 “depend on.”詞組譯為“取決于”。In the simpl

9、est case， the Nematic phase， the molecules generally point in the same direction but still move around with respect to one another as would be expected in a liquid. 最簡(jiǎn)單的情況下，在向列相，分子通常向同一方向移動(dòng)，但也會(huì)像在液體中那樣相互周向運(yùn)動(dòng)。Molds can be made from a very broad spectrum of materials，However，because most processes requ

10、ire high pressures，and often combined with high temperatures，metals still represent by far the most important material group，with steel being the predominant metal. Lesson 2 Mold Materials參考譯文模具使用材料多樣，然而，由于大部分加工過(guò)程要求高壓并經(jīng)常伴有高溫，到目前為止，金屬仍然是最重要的模具材料，其中鋼是主要的金屬材料。 In contrast to the previously used methods

11、 based on the use of patterns，the use of CAD and CIM often represents the more economical solution today.Lesson 2 Mold Materials參考譯文與以前制造模型的方法相比，CAD和CIM的應(yīng)用代表了當(dāng)今更為經(jīng)濟(jì)的制造方法。 although high-grade materials are often used，as a rule，standard materials are used in mold making . New，high-performance material

12、s，such as ceramics，for instance，are almost completely absent. Lesson 2 Mold Materials參考譯文盡管高級(jí)材料也常被使用，但是模具制造通常還是使用標(biāo)準(zhǔn)材料。例如，新型高性能的材料（如陶瓷）幾乎還沒(méi)被使用。 Removal of air from the cavity of a mold is a necessary with many different processing methods，and it has been proposed many times that this can be accomplis

13、hed using porous metallic materials.Lesson 2 Mold Materials在許多不同的成型方法中，都必須將型腔中的氣體排除，人們已經(jīng)多次嘗試使用多孔金屬材料來(lái)排氣。專門制造的排氣裝置位于熔融物料前鋒相遇的地方，即熔接痕處。 參考譯文Fig.1 -5 Microporous metal ejecting in a moldVenting of the edge-gated cavity used to produce a cupshaped product with a complex bottom would require a great deal

14、 of technical effort to provide guaranteed removal of the air from the bottom region. Lesson 2 Mold Materials用側(cè)澆口成型帶有復(fù)雜底部形狀的杯狀制品時(shí)，如何保證將底部的氣體順利排出，其技術(shù)難度是非常大的。用多孔材料做型芯和型腔，不需要其他的排氣措施。 參考譯文It is particularly difficult to remove the necessary amount of heat in regions with long，narrow cores. In this case，

15、 it is possible to distribute cold gas via the system of micropores in the core and in this way intensify the cooling， with the possible result of achieving a shorter cycle time. Lesson 2 Mold Materials從狹長(zhǎng)的型芯中散去大量熱量是非常困難的。既然這樣，讓散布的冷空氣通過(guò)型芯微孔，從而加劇冷卻，以縮短生產(chǎn)周期。 參考譯文New Wordsmaterial property 材料性能 prototy

16、pe mold 原型模具 sintered material 燒結(jié)材料 porous adj.多孔的能滲透的 Air-permeable material 透氣性材料 venting n.通風(fēng)，排氣 Edge-gated cavity 側(cè)(邊緣)澆口式型腔 NotesRemoval of air from the cavity of a mold is a necessary with many different processing methods，and it has been proposed many times that this can be accomplished using

17、 porous metallic materials.Venting of the edg -gated cavity used to produce a cup -shaped product with a complex bottom would require a great deal of technical effort to provide guaranteed removal of the air from the bottom region.在許多不同的成型方法中，都必須將型腔中的氣體排除，人們已經(jīng)多次嘗試使用多孔金 屬材料來(lái)排氣。用側(cè)澆口成型帶有復(fù)雜底部形狀的杯狀制品時(shí)，如何

18、保證將底部的氣體順利排出，其技術(shù)難度是非常大的。In this case，it is possible to distribute cold gas via the system of micropores in the core and in this way intensify the cooling，with the possible result of achieving a shorter cycle time. 既然這樣，讓散布的冷空氣通過(guò)型芯微孔，從而加劇冷卻，以縮短生產(chǎn)周期。 “in this case”譯為“既然這樣”。“it is possible”中的“it”是形式主語(yǔ)，

19、實(shí)際的主語(yǔ)是由 “distribute”和“intensify”這兩個(gè)動(dòng)詞不定式引導(dǎo)的不定式短語(yǔ)。Steel has the ideal qualifications，because its properties can be modified by alloying elements，special production processes，and heat treatment，and it can be adjusted to the already advantageous properties of the steels. Lesson 3 Selection of the Steel

20、 鋼具有理想的性能，因?yàn)樗男阅芸梢酝ㄟ^(guò)加入的合金元素、特定的生產(chǎn)工藝及熱處理進(jìn)行改善，以成為鋼的有利性能。 參考譯文 The development of mold steels that can be divided into the following groups: nitriding steels; case-hardened steels; prehardened steels; fully hardened steels; corrosion-resistant steels; maraging steels; hard material alloys. Lesson 3 Sel

21、ection of the Steel 模具鋼可分為以下幾種:氮化鋼;表面硬化鋼;預(yù)硬鋼;完全硬化鋼;耐腐蝕鋼;馬氏體鋼;超硬材料合金。 參考譯文Nitriding steels are preferred for extruders. Very high surface hardness values of at least 950HV are attained with the aluminum-alloyed steels 34CrAlMo5 and 34CrAlNi7. Lesson 3 Selection of the Steel 氮化鋼是擠出模的首選材料。鋁合金鋼34CrAlMo5

22、和34CrAlNi7氮化后表面硬度值可達(dá)到至少950HV。參考譯文 After the necessary heat treatment，case hardened steels still have a tough cores as well as a wear-resistant surface. The high surface hardness as well as modern deoxidation methods offer the best conditions for polishing. Lesson 3 Selection of the Steel 經(jīng)過(guò)必要的熱處理，表面

23、淬硬鋼心部較韌且表面耐磨性較好。高的表面硬度就如現(xiàn)代真空條件下拋光所得到的表面硬度。參考譯文Prehardened mold steels were originally used only for large molds but have now gained acceptance in plastics processing for molds of all sizes. Prehardened steels for plastic molds can be divided into two groups: （1）Prehardened steels with low sulfur con

24、tent; （2）Prehardened steels with increased sulfur content. Lesson 3 Selection of the Steel 預(yù)硬化模具鋼最初只用于大型模具，但現(xiàn)在也用于塑料加工中各種規(guī)格的模具。預(yù)硬化塑料模具鋼可分為兩種:（1）硫含量低的預(yù)硬化鋼; （2）增加了硫含量的預(yù)硬化鋼。 參考譯文The advantages of using fully hardened tool steels rather than case-hardened steels for molds are primarily the simpler heat t

25、reatment and the possibility of making corrections to the cavity at a later time without a new heat treatment. Lesson 3 Selection of the Steel 在制造模具的過(guò)程中，使用完全硬化鋼而不是淬火鋼的主要優(yōu)勢(shì)在于簡(jiǎn)單的熱處理以及較短的時(shí)間加工型腔而在稍后的時(shí)間不必進(jìn)行新的熱處理。 參考譯文 Corrosion-resistant steels are supplied in either a prehardened conditions， with a tens

26、ile strength of 1000 N/mm2，or a soft，annealed condition and are then heat treated to attain adequate strength. Common corrosion-resistant steels are usually sorted as follows: Prehardened steels; Annealed steels. Lesson 3 Selection of the Steel 耐蝕鋼用于預(yù)硬化狀態(tài)下，其抗拉強(qiáng)度達(dá)到1000 N/mm2;或在軟的退火狀態(tài)下，然后進(jìn)行熱處理，以獲得足夠的強(qiáng)

27、度。普通的耐蝕鋼通常分類如下:（1）預(yù)硬化鋼; （2）退火鋼。 參考譯文Maraging steels are suitable for tools with particularly complicated cavities. This special steel is supplied in the solution-annealed condition and has a tensile strength of 1000 N/mm2. Lesson 3 Selection of the Steel 馬氏體鋼適合制造具有特別復(fù)雜型腔的零件。這種特殊鋼主要用于解決退火問(wèn)題，并具有1000 N

28、/mm2的拉伸強(qiáng)度。 參考譯文 Steels with even higher amounts of carbides cannot be produced by metallurgical melting. In such cases，hard metal alloys，produced by powder metallurgy，are available as a mold material. Lesson 3 Selection of the Steel 鋼若含有較多的碳化物則不能冶金熔化。在這種情況下，用粉末冶金生產(chǎn)的硬質(zhì)金屬合金可作為模具材料。 參考譯文New Wordstoughn

29、ess n.韌性，韌度 Machinability n.機(jī)加工性 quenched /kwentFd/ adj.淬火的 heat treatment 熱處理 wear resistance 耐磨性 corrosion resistance 耐蝕性 nitriding steel 氮化鋼 NotesRemoval of air from the cavity of a mold is a necessary with many different processing methods，and it has been proposed many times that this can be acc

30、omplished using porous metallic materials.Venting of the edg -gated cavity used to produce a cup -shaped product with a complex bottom would require a great deal of technical effort to provide guaranteed removal of the air from the bottom region.在許多不同的成型方法中，都必須將型腔中的氣體排除，人們已經(jīng)多次嘗試使用多孔金 屬材料來(lái)排氣。用側(cè)澆口成型帶有

31、復(fù)雜底部形狀的杯狀制品時(shí)，如何保證將底部的氣體順利排出，其技術(shù)難度是非常大的。In this case，it is possible to distribute cold gas via the system of micropores in the core and in this way intensify the cooling，with the possible result of achieving a shorter cycle time. 既然這樣，讓散布的冷空氣通過(guò)型芯微孔，從而加劇冷卻，以縮短生產(chǎn)周期。 “in this case”譯為“既然這樣”?！癷t is possib

32、le”中的“it”是形式主語(yǔ)，實(shí)際的主語(yǔ)是由 “distribute”和“intensify”這兩個(gè)動(dòng)詞不定式引導(dǎo)的不定式短語(yǔ)。Thank You!(第四版)模具專業(yè)英語(yǔ) Mold Professional English Feed SystemThe Injection Molding and MachinetThree -plate Injection MoldMold Cavities and CoresLesson 4Unit Two The Injection Mold DesignLesson 5Lesson 6Lesson 7Ejection SystemLesson 8Spli

33、tsMold CoolingLesson 9Lesson 10Runnerless Molds Nozzle Types Lesson 11Injection molding（British English: moulding）is a manufacturing process for producing parts from both thermoplastic and thermosetting plastic materials. Material is fed into a heated barrel， mixed， and forced into a mold cavity whe

34、re it cools and hardens to the configuration of the mold cavity.Lesson 4 The Injection Molding and Machine參考譯文注塑成型是將熱塑性和熱固性塑料加工成零件的制造過(guò)程。材料被放入加熱筒中，混合后壓入模腔，冷卻硬化成模腔的形狀。 Injection molding machines consist of a material hopper， an injection ram or screw-type plunger， and a heating unit. They are also kno

35、wn as presses. They hold the molds in which the components are shaped.Lesson 4 The Injection Molding and Machine模具注塑機(jī)由一個(gè)料斗、注射活塞或螺旋式活塞以及一個(gè)加熱裝置構(gòu)成。它們也被稱為壓力機(jī)，內(nèi)含零部件形成的模具。 參考譯文Molds are typically constructed from hardened steel，pre-hardened steel，aluminium，and/or beryllium-copper alloy. Pre-hardened steel

36、 molds are less wear resistant and are used for lower volume requirements or larger components.Lesson 4 The Injection Molding and Machine模具通常由淬火鋼、預(yù)硬鋼、鋁或鈹-銅合金制成。預(yù)硬鋼模具不耐磨，適用于小批量生產(chǎn)或制造較大的零件。參考譯文Hardened steel molds are heat treated after machining. These are by far the superior in terms of wear resistan

37、ce and lifespan. Beryllium copper is used in areas of the mold which require fast heat removal or areas that see the most shear heat generated.Lesson 4 The Injection Molding and Machine淬硬鋼模具加工后要進(jìn)行熱處理。這類模具在耐磨性和使用壽命方面具有較強(qiáng)的優(yōu)勢(shì) 。鈹-銅合金適用于制造需快速去熱或消除產(chǎn)生的熱能的模具。參考譯文Plastic resin enters the mold through a sprue

38、 in the injection mold， the sprue bush is to seal tightly against the nozzle of the injection barrel of the molding machine and to allow molten plastic to flow from the barrel into the mold， also known as cavity.Lesson 4 The Injection Molding and Machine塑料樹脂通過(guò)注塑模具的澆道進(jìn)入模具，澆口套密封緊接在注塑機(jī)注射料筒的噴嘴處，讓熔化的塑料從料

39、筒流到模具，也就是型腔。參考譯文Trapped air in the mold can escape through air vents that are grinded into the parting line of the mold. If the trapped air is not allowed to escape，it is compressed by the pressure of the incoming material and is squeezed into the corners of the cavity，where it prevents filling and

40、causes other defects as well.Lesson 4 The Injection Molding and Machine模具里積存的空氣可以通過(guò)模具分型線的通風(fēng)口排出。如果積存的空氣不能排出，進(jìn)料的壓力會(huì)把它們擠壓到型腔的角落，這會(huì)妨礙填充并導(dǎo)致其他問(wèn)題。參考譯文New Wordsinjection mold 注塑模具 mold cavity 模具型腔 injection ram 注射活塞 clamping force 鎖模力 beryllium-copper alloy 鈹-銅合金 Electrical Discharge Machining process 電火花加工

41、 sprue bush 澆口套 runner n.流道 trapped adj.堵塞的 Notes:After a product is designed， usually by an industrial designer or an engineer， molds are made by a moldmaker（or toolmaker） from metal， usually either steel or aluminium， and precision machined to form the features of the desired part.Beryllium copper

42、 is used in areas of the mold which require fast heat removal or areas that see the most shear heat generated.通常工業(yè)設(shè)計(jì)師或工程師設(shè)計(jì)完一個(gè)產(chǎn)品后，模具制造師（或工人）就會(huì)用金屬，通常為鋼或鋁，制造模具，且精加工以達(dá)到理想效果。 句中的“usually by an industrial designer or an engineer”修飾前面的“product”，句中的 “either . or .”譯為“或者或者”。鈹-銅合金適用于制造需快速去熱或剪切熱產(chǎn)生最多的模具區(qū)域。 句中的

43、“which require fast heat removal or areas”修飾的是前面的“mold”，而句中的 “that see the most shear heat generated”修飾的是前面的“areas”。If the trapped air is not allowed to escape， it is compressed by the pressure of the incoming material and is squeezed into the corners of the cavity， where it prevents filling and cau

44、ses other defects as well.如果積存的空氣不能排出，進(jìn)料的壓力會(huì)把它們擠壓到型腔的角落，這會(huì)妨礙填充并導(dǎo)致其他問(wèn)題。 句中的“be compressed by”譯為“被壓縮”，“where it prevents filling and causes other defects as well”從句修飾的是前面的“the corners of the cavity”。Three -plate injection molds are injection molds possessing two parting lines，having been designed as d

45、egating molds. This means that the sprue is separated from the parts in the mold.Lesson 5 Three plate njection Mold 三板式注射模具是具有兩個(gè)分型面的注射模具，這種模具帶有澆口，也就是直澆道在模具中和塑件相分離。參考譯文At the conclusion of injection the mold opens at the first parting line，which contains the sprue and runner and separated the pinpoin

46、t gate from the part. Only when the second parting line opened，the part would be released.Lesson 5 Three plate njection Mold 在注射結(jié)束后，模具沿第一層分型面開模，其中包含了注入口、澆道和 塑件中分流的針孔型澆口。僅當(dāng)沿第二層分型面開模時(shí)，塑件才脫離型芯。 參考譯文New Wordsthree -plate injection mold 三板式注射模具 sprue n .注入口，直澆道 pinpoint n .針孔型澆口 stop n .止動(dòng)銷，制動(dòng)銷，限位器 reten

47、tion system 滯留系統(tǒng) ejector plate 頂料板 protruding rod 凸出桿，伸出桿 star -shaped runner 星形流道 sprue separating area 澆道分離面 sprue -stripping plate 注料口分模板 stripping n .脫模，拆模 Notes:Contrary to the usual mold design, this tool has an additional mold parting line for the star shaped runner.At the conclusion of injec

48、tion the mold first parted at 1 in the sprue separating area when the machine opens.與通常的模具設(shè)計(jì)不同，此模具中為星形流道設(shè)計(jì)了一個(gè)附加的模具分型線。居中“contrary to”譯為“與相反”。當(dāng)注射成型結(jié)束時(shí)，隨著機(jī)器的打開，模具將首先在澆道分離面1處分型。句中短語(yǔ)“at the conclusion of”譯為“當(dāng)完結(jié)時(shí)”。Normally the feed system comprises a sprue， runner and gate. These terms apply equally to t

49、he flow way itself，and to the molded material which is removed from the flow way itself in the process of extracting the molding.Lesson 6 Feed System澆注系統(tǒng)由主流道、分流道和澆口組成。這些術(shù)語(yǔ)應(yīng)用在相應(yīng)的進(jìn)料通道本身，以及取出塑件時(shí)從進(jìn)料通道中一同取出的澆注系統(tǒng)凝料。參考譯文As the temperature of molten plastic is lowered while going through the sprue and runne

50、r， the viscosity will rise; therefore， the viscosity is lowered by shear heat generated when going through the gate to fill the cavity.Lesson 6 Feed System熔融塑料通過(guò)主流道和分流道時(shí)溫度降低而使熔體黏度升高，然而當(dāng)熔體通過(guò)澆口填充型腔時(shí)，由于剪切作用產(chǎn)生的熱量又使黏度降低。 參考譯文A sprue is a channel through which to transfer molten plastic injected from the

51、nozzle of the injector into the mold. A runner is a channel that guides molten plastic into the cavity of a mold. A gate is an entrance through which molten plastic enters the cavity.Lesson 6 Feed System參考譯文主流道是將熔融塑料從注塑機(jī)噴嘴傳遞到模具型腔的通道。分流道是引導(dǎo)熔融塑料進(jìn)入模具型腔的通道。澆口是熔融塑料進(jìn)入型腔的入口。 The purpose of the cold slug we

52、ll， shown opposite the sprue， is theoretically to receive the material that has chilled at the front of the nozzle during the cooling and ejection phase.Lesson 6 Feed System參考譯文冷料井正對(duì)著主流道。理論上，冷料井的作用是用來(lái)儲(chǔ)存在塑件冷卻和推出過(guò)程中注塑機(jī)噴嘴處形成的熔體前鋒冷料。New WordsFlow-way 進(jìn)料通道 nozzle n.噴嘴 branch runner 分流道 injector n.注射器 sol

53、idify vt.(使)凝固，(使)固化 backflow n.逆流，流向來(lái)源 cold slug well 冷料井 chilled adj.已冷的，冷硬了的 Notes:As the temperature of molten plastic is lowered while going through the sprue and runner， the viscosity will rise; therefore， the viscosity is lowered by shear heat generated when going through the gate to fill the

54、 cavity.The purpose of the cold slug well shown opposite the sprue is theoretically to receive the material that has chilled at the front of the nozzle during the cooling and ejection phase. 熔融塑料通過(guò)主流道和分流道時(shí)溫度降低而使熔體黏度升高，然而當(dāng)熔體通過(guò)澆口填充型腔時(shí)，由于剪切作用產(chǎn)生的熱量又使黏度降低。句中的“therefore”連接前后兩個(gè)句子，“As the temperature of mol

55、ten plastic is lowered while going through the sprue and runner”是原因狀語(yǔ)從句，修飾“the viscosity will rise”。冷料井正對(duì)著主流道。理論上，冷料井的作用是用來(lái)儲(chǔ)存在塑件冷卻和推出過(guò)程中注塑機(jī)噴嘴處所形成的熔體前鋒冷料。 句中的“shown opposite the sprue”修飾“the cold slug well”，“that has chilled at the front of the nozzle”是定語(yǔ)從句，修飾“the material”。We then proceeded to indic

56、ate alternative ways by which the cavity and core could be incorporated into the mold and we found that these alternatives fell under two main headings， namely the integer method and the insert method. Another method by which the cavity can be incorporated is by means of split inserts or splits.Less

57、on 7 Mold Cavities and Cores參考譯文接下來(lái)我們簡(jiǎn)要說(shuō)明選擇哪種方式把型腔和型芯安裝在模具中。這些方式可以歸納為兩大類，即整體式和鑲拼式。另一種組成型腔的方式是加入拼塊或滑塊。 When the cavity or core is machined from a large plate or block of steel，or is cast in one piece， and used without bolstering as one of the mold plates，it is termed an integer cavity plate or intege

58、r core plate.Lesson 7 Mold Cavities and Cores當(dāng)型腔或型芯由一塊大的鋼板或鋼塊加工而成，或者鑄成一體，不需使用支承件而形成一塊模板時(shí)，就構(gòu)成整體式型腔板或型芯板。 參考譯文Of the many manufacturing processes available for preparing molds only two are normally used in this case. These are a direct machining operation on a rough steel forging or blank using the co

59、nventional machine tools， or the precision investment casting technique in which a master pattern is made of the cavity and core.Lesson 7 Mold Cavities and Cores參考譯文在模具制造的眾多方法中，用于加工整體式型腔板或型芯板的方法主要有兩種:使用傳統(tǒng)機(jī)床對(duì)粗鍛鋼材坯料直接加工，或利用精確的熔模鑄造技術(shù)將坯料加工成型腔和型芯。The method consists in machining the impression out of sma

60、ll blocks of steel. These small blocks of steel are known，after machining，as inserts，and the one which forms the male part is termed the core insert and，conversely，the one which forms the female part the cavity insert.Lesson 7 Mold Cavities and Cores鑲拼式型腔由小鋼塊加工而成。加工后的小鋼塊作為鑲件，形成型芯部分的稱為型芯嵌件，相反地，形成型腔部分